THE AUSTRALIAN
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THE ENTOMOLOGICGCAL SOCIETY 0F QUEENSLAND
Volume 40, Part 3, 26 August 2013
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Cover: Our cover illustration for 2013 shows a species of the pebble-mimicking
genus Raniliella (Orthoptera: Acrididae). There are two species in the genus, both
restricted to desert environments of the northern parts of South Australia. They are
commonly seen in stony areas around the Flinders Ranges. Raniliella is one of
several genera of Australian grasshoppers which closely resemble the stones of our
extensive gibber deserts. The illustration is reproduced by permission from CSIRO’s
Insects of Australia and is by the late Frank Nanninga, a Dutch-born artist who was
the leading insect illustrator of the 1960s in Australia. His work reached its peak in
the eight magnificent colour plates which grace the pages of Insects of Australia.
Australian Entomologist, 2013, 40 (3): 101-110 101
LIFE HISTORY NOTES AND NEW FOQ wae
ARN EI (BUTLER. 188
PO Box 188, Redlynch, Qld 4870 (Email: mark xg
Abstract _
All life history stages of the Green Triangle butterfly, Graphium macfarlanei macfarlanei
(Butler), are described and illustrated from observations made in Cairns, Queensland.
Development times for each stage are given. Use of the cultivated custard apple Annona
reticulata as a food plant is confirmed and four new food plants (three native and one
introduced) are recorded, all Annonaceae. Use of the introduced Indian Mast Tree, Polyalthia
longifolia pendula, as a larval host has increased abundance of the butterfly in the Cairns region.
Introduction
The Green Triangle, Graphium macfarlanei macfarlanei (Butler, 1877) (Figs
1-2), is part of the papilionid tribe Leptocircini (= Graphiini), which also
includes the genera Protographium Munroe and Graphium Scopoli (Orr and
Kitching 2010). Within Australian limits, G. macfarlanei ranges from the
Torres Strait Islands south to Weipa and the Mcllwraith Range and from
Cooktown to Ingham (Braby 2000, Dunn and Dunn 2006). There is an
unconfirmed southern vagrancy record from coastal woodlands near Bowen
(Dunn 2008). Braby (2004) listed its status as ‘common but local on Cape
York Peninsula; rare in the wet tropics’.
Figs 1-2. Adults of Graphium macfarlanei from Cairns Queensland; upperside left,
underside right: (1) male; (2) female.
Prior to this paper, the larval food plants [all Annonaceae] were listed by
D’Abrera (1971) as Annona muricata (Sour Sop) and A. squamosa (Sugar
102 Australian Entomologist, 2013, 40 (3)
Apple). Common and Waterhouse (1972) added 4. reticulata (Custard
Apple), while Braby (2000) added Rollinia deliciosa (Brazilian Custard
Apple), the native Desmos sp. and possibly Xylopia (probably based on the
citation in Parsons 1998) to the list, but considered the record of A. reticulata
as ‘unconfirmed’. Orr and Kitching (2010) excluded the ‘unconfirmed’ A.
reticulata record from their list of food plants for G. macfarlanei.
Braby (2000) noted that little was known about the immature stages and gave
a brief description of larva and pupa based on photographs taken by R.W.
Guard. The egg has not been recorded previously.
The author began sighting adults of this species on a regular basis after
moving to Greenforest, 10 km west of Kuranda, northern Queensland, in
1999. Here, adult males would patrol high above canopy clearings during
most months of the year, with the females tending to fly along the edges of
the rainforest. However, it was not until moving to suburban Cairns some
years later that the author began breeding this species and was able to
substantially add to published details of its life history and food plants.
Observations
Immature stages and behaviour
Egg (Fig. 3): Pale yellow (almost white) when laid, later changing to a dark
yellow. Spherical and smooth; under 10 x magnification 1.4 mm in diameter.
Eggs are laid singly on the larval food plant, usually on the upperside or edge
of young foliage or on an adjacent more mature leaf. However, a returnin
female will lay more eggs adjacent to existing eggs.
Larva: Ist instar (Fig. 4) larvae are caramel coloured with a white patch on
the upperside of the lower abdomen. The head is also white, which fades to
brown after the first few days. The thorax has six thoracic horns and the
abdomen has a series of fine hairs, with a characteristic white forked tail just
above the anal plate. First instar larvae usually rest on the upperside of the
food plant’s juvenile growth and reach 3 mm in length.
2nd instar (Fig. 5): These are a darker brown, with more contrast between the
brown and the white patch on the abdomen. The fine hairs are gone, leaving
just the six thoracic horns and forked tail. They usually rest on the upperside
of the more mature leaves and reach 9 mm in length.
3rd instar (Fig. 6): These develop a green colouration to the thorax and the
patch on the abdomen. However, colour variation can range from dark brown
to orange or lime green, depending on which food plant they are feeding.
Larvae feeding on Polyalthia sp. are more likely to have a mottled greenish-
brown appearance, while larvae on Annona muricata are likely to be lime
green. Third instar larvae reach approximately 17 mm in length.
4th instar (Fig. 7): These develop the green colouration further, with the light
patch on the abdomen becoming less conspicuous. The thoracic horns
Australian Entomologist, 2013, 40 (3)
Figs 3-8. Graphium macfarlanei: (3) eggs on leaf of Polyalthia longifolia; (4) 1st
instar larva; (5) 2nd instar larva; (6) 3rd instar larva on leaf of Annona muricata; (7)
4th instar larva; (8) final instar larva.
104 Australian Entomologist, 2013, 40 (3)
become less pronounced as the larva grows. Larval colours are still highly
variable in this instar, which reaches around 27 mm in length.
Final instar (Fig. 8): These tend to be more uniform in colour. However, they
can vary from lime green to a yellowish brown (Figs 13-14). The white patch
on the abdomen is usually absent. The short thoracic horns are usually black,
but can have a red or pink base around them (e.g. Fig. 14). They reach 46 mm
in length. Freshly moulted larvae consume the sloughed skin and discard the
head capsule.
Pupa (Figs 9-10): This is well described in Braby (2000) and is around 36
mm in total length.
Figs 9-10. Pupa of Graphium macfarlanei: (9) lateral view; (10) dorsal view.
Parasites: Many eggs are parasitised by wasps before they hatch. Larvae and
pupae can be susceptible to parasitism by tachinid flies at certain times of the
year, but parasitism appears to be more prevalent during the wet season.
Comments: Larvae and pupae of G. m. macfarlanei from Australia show a
superficial resemblance to those of G. m. seminigra Butler from New Britian
(see D’Abrera 1971). Larvae are variable in colour (Figs 11-14) and pupate
on the underside of mature leaves of the larval food plant, where they can be
difficult to detect. Pupal colouration can vary a little, depending on the food
plant tree. Pre-pupal larvae may leave the host tree to pupate if given the
opportunity. Pupae may be found on nearby trees or vines provided that they
are physically connected to the host (such as by vines). Larvae have not been
observed descending to the ground to leave the host tree.
Australian Entomologist, 2013, 40 (3)
Figs 11-14. Graphium macfarlanei; larval colour variation: (11-12) 3rd-4th instars;
(13-14) final instars.
106 Australian Entomologist, 2013, 40 (3)
Duration of early stages
The duration of the immature stages in Cairns between February and March
was as in Table 1, based on a single specimen followed right through from
egg to adult. Pupal duration ranged from 12 to 16 days (Average 14.4, n = 8),
based on a series of pupae reared during March and April.
Table 1. Duration of larval and pupal stages of a specimen of Graphium macfarlanei.
Larval growth rate
Daily length measurements were taken during the larval development for a
single specimen. These figures were plotted and produced the following
graph (Fig. 15), which shows the acceleration in growth in the fourth and
fifth instars. The larva releases some of its fluid in the final instar just before
pupation and contracts in size.
Growth Rate
50 5
E40 i
<=
3 aii |
5 10 Ta ==
G ———
> Ee
UTET ES pera mgee meae a eg ee a eer es a + O
iagaA 5 & 7 A 9 10 11 12 13 14 15
Days
Fig. 15. Larval growth rate.
Australian Entomologist, 2013, 40 (3) 107
The larva was reared on a series of small potted plants of Annona muricata,
changed over regularly to ensure that fresh, soft growth was always available
to the larva to allow it to fully develop.
New food plant records
1. Indian Mast Tree — Polyalthia longifolia pendula (Sonn.) (Annonaceae).
The Indian Mast Tree (Figs 16-17) is a fast growing, lofty evergreen tree
native to India. It exhibits symmetrical pyramidal growth with weeping
branches and long, narrow lanceolate leaves with undulate margins. Fresh
leaves are coppery brown and are soft and delicate to touch; as the leaves
grow older the colour becomes a light green and, finally, a dark green.
The Indian Mast Tree is gaining popularity as an ornamental tree in
landscaped gardens and can be found commonly around Cairns and other
tropical northern Queensland centres. The author has many of them in his
backyard, which are frequently visited by G. macfarlanei adults for
oviposition. The author has reared many adults on this species of plant
throughout the year. Adults prefer to oviposit on or adjacent to the juvenile
coppery-brown leaves. Larvae prefer the juvenile growth.
2. Raspberry Jelly Tree — Miliusa brahei (F. Muell.) Jessup (Annonaceae).
Miliusa brahei is endemic to Australia, being widespread in Western
Australia, Northern Territory, Cape York Peninsula, northeastern Queensland
and southwards to coastal central Queensland. Altitudinal range is from near
sea level to 250 m. It grows in monsoon forest and drier rainforest.
Two small trees of M. brahei were purchased from Yuruga Nursery,
Walkamin in northern Queensland in June 2009. Over the past two years,
adults of G. macfarlanei have occasionally oviposited on the new growth,
with larvae being sleeved and reared to adults on this plant species.
3. Miliusa Tree - Miliusa traceyi Jessup (Annonaceae).
Miliusa traceyi occurs from Cape York to Lakeland Downs, as well as in the
Northern Territory. It grows in gallery forest and the drier, more seasonal
rainforests as an understorey tree with layered, drooping branches. The leaves
are velvet-hairy underneath (Beasley 2009).
The use of M. traceyi as a host plant for G. macfarlanei has been known to
entomologists for many years (D. A. Lane pers. comm.) but has remained
unpublished. On a trip to Coen on Cape York Peninsula in January 2012,
adults of G. macfarlanei were observed on the wing on the slopes and
summit of Mt White. Larvae were found feeding on the juvenile growth of M.
traceyi. David Lane has reared adults on this plant species.
Australian Entomologist, 2013, 40 (3)
Figs 16-18. Newly recorded larval food
(16-17) Polyalthia longifolia pendula; (18) Melodorum leichhardtii.
plants of Graphium macfarlanei macfarlanei:
Australian Entomologist, 2013, 40 (3) 109
4. Zig-zag vine - Melodorum leichhardtii (F.Muell.) Benth. (Annonaceae).
Melodorum leichhardtii (Fig. 18) is a scrambling climber that occurs in vine
forests from Cape York to northeastern New South Wales (Beasley 2009).
While this plant species is a known host for Graphium agamemnon (L.),
Graphium eurypylus (L.) and Protographium leosthenes (Doubleday), until
now it has not been recorded as a host for Graphium macfarlanei.
In 2009, a juvenile plant was purchased from Yuruga Nursery and has been
growing in the author’s backyard in Cairns since then. On the 19 February
2013, a third instar larva of G. macfarlanei was noticed feeding on the fresh
growth of this plant species. The larva was sleeved on the tree and pupated on
2 March 2013. The adult emerged on 14 March 2013.
This confirms Melodorum leichhardtii as a newly recorded host plant for G.
macfarlanei.
Confirmed food plant record
Custard Apple - Annona reticulata Linn. (Annonaceae).
A single tree of A. reticulata was purchased from Limberlost Nursery in
Cairns in January 2008. The plant contained eggs and early instar larvae of a
Graphium sp., which were raised to adults and proved to be G. macfarlanei.
Over the last few years, wild adults of G. macfarlanei have regularly
oviposited on the new growth of the A. reticulata tree, with many adults
being raised on this plant species. Many larvae have also been collected from
an A. reticulata tree at Kewarra Beach, north of Cairns. This confirms the
record by Common and Waterhouse (1972) of A. reticulata as a food plant
for G. macfarlanei.
Discussion
Of the several Annonaceae trees in the author’s backyard, the favoured trees
for oviposition of the Green Triangles are (in order of proliferation):
Annona muricata
Polyalthia longifolia
Annona reticulata
Miliusa brahei
Melodorum leichhardtii
However, the most significant factor influencing oviposition choice by adults
seems to be the presence of fresh growth on which to lay eggs.
While the adults of G. macfarlanei are rarely seen in the wet tropics, the
immature stages are considered to be seasonally abundant in Cairns (J. Olive
pers. comm.).
110 Australian Entomologist, 2013, 40 (3)
An effective natural form of population control for G. macfarlanei (and many
other species) appears to be the green tree ant, Oecophylla smaragdina
(Fabricius), which naturally occurs in the majority of food plant trees that the
author has examined. Winged females of O. smaragdina will land on the
leaves of the food plant trees and establish a nest by creating a silken pad
between two leaves. Here, the eggs are laid and a new nest established. This
annual occurrence usually takes place in January.
Despite the predators, the author believes that as the planting of the Indian
Mast Tree as an ornamental landscaping tree increases throughout the tropics,
so too will the abundance of G. macfarlanei, with further range extensions of
this species expected in the future.
Acknowledgements
I thank David Lane and John Olive for their generosity and company in the
field and for allowing me to cite their observations. I also thank the Shepherd
family of Coen for allowing us access to their private property around Mt
White. The draft of the manuscript benefited greatly from the reviews of Bob
Miller and Dr Geoff Monteith and I thank them for their valuable
suggestions. I also acknowledge my partner Jodie Coldwell for her patience
and support.
References
BEASLEY, J. 2009. Plants of Cape York, the compact guide. John Beasley.
BRABY, M.F. 2000. Butterflies of Australia: their identification, biology and distribution.
CSIRO Publishing, Collingwood; xxvii + 976 pp.
BRABY, M.F. 2004. The complete field guide to butterflies of Australia. CSIRO Publishing,
Collingwood; x + 340 pp.
COMMON, I.F.B. and WATERHOUSE, D.F. 1972. Butterflies of Australia. Angus &
Robertson, Sydney.
D’ABRERA, B. 1971. Butterflies of the Australian Region. Lansdowne, Melbourne.
DUNN, K.L. 2008. New and interesting spatial and temporal butterfly records from eastern
Australia. Victorian Entomologist 38(3): 36-45.
DUNN, K.L. and DUNN, L.E. 2006. Review of Australian butterflies — 1991; Annotated version.
(CD-ROM). Melbourne, Australia; published by the authors,
ORR, A and KITCHING, R. 2010. The butterflies of Australia. Allen & Unwin, Sydney; viii +
328 pp.
PARSONS, M. 1998. The butterflies of Papua New Guinea: their systematics and biology.
Academic Press, London; xvi + 736 pp, xxvi + 136 pls.
Australian Entomologist, 2013, 40 (3): 111-112 111
A PROVISIONAL RANGE EXTENSION FOR THECLINESTHES
SULPITIUS (MISKIN) (LEPIDOPTERA: LYCAENIDAE) IN
WESTERN AUSTRALIA
DANIEL KING
420 Spencer Road, Thornlie, WA 6108 (Email: drd_king@hotmail.com)
Abstract
Theclinesthes sulpitius (Miskin) is provisionally recorded from the North West Cape area of
Western Australia.
Introduction
Theclinesthes sulpitius (Miskin, 1890), the Samphire Blue, has a varied
distribution around Australia, with its range in Western Australia considered
to extend as far south as Broome (M. Braby pers. comm.). There are no
previous records of this butterfly from the North West Cape area, further
south.
Discussion
A single specimen (Fig. 1) of a butterfly satisfying at least 3 of the 4 criteria
proposed by Braby (2012) for identifying T. sulpitius was collected by the
author on 10 February 2013. The site was along the track leading to the
Oyster Stacks snorkelling area of Ningaloo Reef, within the Cape Range
National Park (22.1328, 113.878E). The butterfly was locally common
around various unidentified succulents growing beside the track.
ao ee brs a
Fig. 1. Theclinesthes sulpitius: upper and undersides of female from Cape Range
National Park, WA.
To distinguish T. sulpitius from T. serpentata (Herrich-Schiaffer, 1869),
Braby (2012) offered the following comments:
‘Both species closely resemble each other and are difficult to separate, but the
main points of difference concern three colour pattern characters and one
ecological character: (1) upperside ground colour; (2) extent of tornal spots on
hindwing; (3) extent of white patch on underside of hindwing; and (4) habitat and
larval food plant specialisation. In T. sulpitius, the upperside ground colour is
112 Australian Entomologist, 2013, 40 (3)
brown with the blue area absent or restricted to the basal areas, whereas in T.
serpentatus the blue area is extensive. The tornal spots on the hindwing in T.
sulpitius are conspicuous, especially on the underside, whereas they are generally
obscure in T. serpentatus. The white patch on the underside of the hindwing is
usually present, but generally less extensive, in T. sulpitius, whereas it is always
present and generally extensive in T. serpentatus.’
Braby (2000) provided a further criterion: in T. sulpitius there is an ‘absence
of a chequered scale-fringe’. Braby (2000) conceded, however, that ‘some
specimens of T sulpitius ... have the scale fringe present’ and, in Braby
(2004), this criterion is not mentioned as a defining characteristic.
The specimen collected satisfies the first three criteria and also lacks a
chequered scale-fringe. (Note that it has hair-like extensions adjacent to the
tornal spots on the hind wings). Whether the specimen satisfies Braby’s
fourth criterion is unknown, as the identity of the plants that were the focus of
the butterflies is likewise unknown. A photographic image of the area
obtained from the internet, however, shows plants similar to or the same as
those around which the butterflies were flying; comparison of these plants
with images of samphires is supportive of the idea that the plants where I
caught my specimen are samphires. Nevertheless, M. Braby (pers. comm.)
suggested that the collection of further specimens would be desirable and I
present my finding so that other interested collectors may visit the site and
obtain such specimens.
Acknowledgements
I thank the Western Australian Department of Environment and Conservation
for granting Licence Number SF009032, enabling me to collect from Cape
Range National Park. I also thank Michael Braby, Kelvyn Dunn, Andy
Williams and Matt Williams for their comments with regard to the specimen
discussed. Special thanks are due to Andy Williams for photographing the
specimen.
References
BRABY, M.F. 2000. Butterflies of Australia: their identification, biology and distribution.
CSIRO Publishing, Collingwood; xxvii + 976 pp.
BRABY, M.F. 2004. The complete field guide to the butterflies of Australia. CSIRO Publishing,
Collingwood; x + 340 pp.
BRABY, M.F. 2012. The butterflies of El Questro Wilderness Park, with remarks on the
taxonomy of the Kimberley fauna, Australia. Records of the Western Australian Museum 27(2):
161-175.
Australian Entomologist, 2013, 40 (3): 113-117 l 113
NEW AUSTRALIAN RECORDS OF ASIAN OR NEW ZEALAND
PHLAEOTHRIPIDAE (THYSANOPTERA)
LAURENCE A. MOUND! and LI-HONG DANG”?
'CSIRO Ecosystems Sciences, PO Box 1700 Canberra, ACT 2601
(Email: laurence.mound@csiro.au)
?Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese
Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100101, P.R.China
University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing
100049, P.R.China
Abstract
Three species of Phlaeothripidae described from Southeast Asia and two species described from
New Zealand are here recorded from Australia. Three genera, Anaglyptothrips Mound & Palmer,
Azaleothrips Ananthakrishnan and Yarnkothrips Mound & Walker, should be added to the
Australian faunal list.
Introduction
The Thysanoptera fauna of Australia, in addition to several large endemic
radiations on plants such as Acacia and Casuarina (Mound 2004), includes in
the north of this continent a considerable number of taxa that are essentially
Asian, whereas in the south several taxa are shared with New Zealand. The
increasing recognition of the Asian tropical element in this fauna has been
referred to in recent papers (Mound 2004, Mound and Tree 2007, 2009,
2011), as has the New Zealand connection (Mound 2006, Mound and Walker
2012).
The purpose of this paper is to record from Australia five further species of
Phlaeothripidae, two known from New Zealand and three from tropical Asia,
and thus to add to the Australian faunal list the following three genera:
Anaglyptothrips Mound & Palmer, Azaleothrips Ananthakrishnan and
Yarnkothrips Mound & Walker. Full nomenclatural details of these taxa are
web-available (ThripsWiki 2013). Slide-mounted specimens of the species
listed here are in the Australian National Insect Collection, Canberra, with
others in the Queensland Primary Industries Insect Collection, Brisbane.
Anaglyptothrips dugdalei Mound & Palmer
Anaglyptothrips dugdalei Mound & Palmer, 1983: 35.
A member of the subfamily Idolothripinae, in which all species are presumed
to feed on fungal spores, the genus Anaglyptothrips includes only this
species. It was described from near Auckland, New Zealand, collected from
introduced grasses, but one female has recently been collected near Nelligen
in southeastern New South Wales and two females have been studied from
southeastern Queensland (Tree and Walter 2012). Among the Idolothripinae
recorded from Australia (Mound 1974), this genus shares only with
Gastrothrips Hood the condition of having three sensoria on the fourth
antennal segment. In contrast to members of that genus, it is a yellow,
114 Australian Entomologist, 2013, 40 (3)
wingless species with the body surface sculptured with strong reticulation
and no long setae. The head, illustrated by Mound and Walker (1986: 92),
has the compound eyes small but bulbous with each having fewer than 12
ommatidia.
Specimens studied. QUEENSLAND: 1 @, Brisbane, Gap Creek Reserve, in Acacia
leaf-litter, 8.12009 (DJ Tree); 1 9, Gap Creek Reserve, in Acacia leaf-litter,
24.xii.2008 (DJ Tree). NEW SOUTH WALES: 1 9, Nelligen, from grass by stream,
24.i.2013 (L-H Dang).
Pygothrips vicinus Okajima
Pygothrips vicinus Okajima, 1990: 97.
The Idolothripinae genus Pygothrips Hood includes 17 species and is found
throughout tropical countries, feeding on fungal spores on dead branches. In
the type species of the genus, P. rugicauda Hood from northern Queensland, |
abdominal segment ten, i.e. the tube, is greatly swollen with strongly convex |
margins (Mound 1974). Several species from other countries, plus some
undescribed species from Australia, have the tube similarly swollen, but this
is an extreme condition amongst a series of species that are included in this
genus. Several species have the tube less swollen, although with the margins
more strongly convex than the straight-sided tube that is typical of most
Phlaeothripidae. The species here newly recorded from Australia, P. vicinus,
has the tube with convex margins. Okajima (1990) described and illustrated
this species from the Ryukyu Islands of southern Japan and also recorded it
from Thailand and Java. The Australian specimens listed below have been
compared with paratypes of P. vicinus from Okinawa and, despite having
slightly shorter postocular setae, are considered to represent that species.
New record. QUEENSLAND (Torres Strait): 4 99, Horn Island, from base of dead
Dianella, 20.xi.2009 (AC Postle).
Azaleothrips lepidus Okajima
Azaleothrips lepidus Okajima, 1978: 386.
Ten species have been placed in the genus Azaleothrips, all from tropical |
Asia. These thrips are members of the Phlaeothripinae and all live on dead
branches, feeding on fungi. The surface of the head and thorax is covered
with complex sculpture that involves irregular markings within each
sculptured reticle. Azaleothrips lepidus is known previously only from
Thailand and the specimen listed below is identified from the original
description and illustrations (Okajima 1978). However, this is a member of a
group of four described species that have been distinguished from each other
only by slight differences in the colour of the pronotum and legs, and the
lengths of the postocular setae on the head. One of these, A. amii
Ananthakrishnan, is recorded widely across India (Ananthakrishnan and Sen
1980) but remains poorly defined, while 4. bhattii Vijay Veer & Chauhan is
based on a single sample from northern India. In contrast, although the
Australian Entomologist, 2013, 40 (3) 115
descriptions and illustrations of 4. lepidus and A. siamensis Okajima are well
prepared and based on good samples, these two species were collected
together in Thailand from the same sample of dead leaves and there is some
overlap in the character states used to distinguish them. In structure these four
species are very similar to each other and the possibility exists that they may
represent a single, widespread species on dead leaves and branches.
New record. NORTHERN TERRITORY: 1 9, Cobourg Peninsula, Smith Point, from
dead twigs, 14.v.1999 (LAM 3698).
Strepterothrips orientalis Ananthakrishnan
Strepterothrips orientalis Ananthakrishnan, 1964: 118.
The genus Strepterothrips Hood currently includes nine species from various
parts of the tropics and Mound and Ward (1971) provided a key to the six
species then known. One of these species, S. tuberculatus (Girault), is one of
the most common and widespread Phlaeothripinae in Australia, having been
taken widely across the continent, fungus-feeding on dead branches.
Strepterothrips orientalis was described from India, subsequently recorded
from Thailand and included in the key to species by Mound and Ward
(1971). It differs from the other members of the genus in having antennal
segments two and three bright yellow, in contrast to the dark brown colour of
the rest of the heavily sculptured body. Moreover, the third antennal segment
is unusually short, being as wide as long, and bears only one sensorium, with
three sensoria on the fourth segment. Members of this genus are highly
polymorphic, generally wingless but with rare winged females. Males vary
greatly in body size with large males having a greatly produced ventral
hamus on the fore tarsus that looks like a tarsal claw, as illustrated by
Okajima (1995). For several years S. orientalis has been known to be
widespread across northern Australia, but previously the species had not been
formally recorded.
New records. QUEENSLAND: 1 &, Townsville, 16.vii.1995; 1 9, Townsville,
23.viii.2004; 3 29, 1 3, Torres Strait, Boigu Island, from dead wood, 16.xi.2009; 1
Q, Darnley Island, 17.xi.2009; 1 ĝ, Warraber Island, 19.xi.2009. NORTHERN
TERRITORY: 1 9, Coburg Peninsula, Smith Point, from dead twigs, 14.v.1999.
WESTERN AUSTRALIA: 6 99, 1 3, 20 km south of Broome, from dead mango
branch, 1.iii.2005; 1 2, Broome, 28.vii.1997; 2 29, 1 6, larvae, Kununurra
23.ii.2005, 4 99, 1 3, Kununurra, 27.ix.2009.
Yarnkothrips kolourus Mound & Walker
Yarnkothrips kolourus Mound & Walker, 1986: 83.
Described from various coastal regions of New Zealand, this is the only
species placed in this genus. The fore tarsus has a small hook-shaped tooth
distally on the inner margin. However, this arises from the ventral apical
margin of the tarsus and is thus a hamus, and is not homologous with a
typical fore tarsal tooth that arises laterally. Illustrated by Mound and Walker
116 Australian Entomologist, 2013, 40 (3)
(1986), the maxillary bridge within the head is curiously arched, antennal
segment three bears three sensoria and the terminal setae on the abdominal
tube are exceptionally short. The relationships of this genus within the
Phlaeothripinae remain in doubt. The species is likely to be predatory on
other small arthropods, with adults varying considerably in body size.
Specimens have been collected recently from several localities other than
New Zealand, as indicated below.
New records. AUSTRALIAN CAPITAL TERRITORY: 2 9, from dead Eucalyptus,
Namadji, 18.iii.2006; 1 9, Black Mt., 7.x.2011; 1 9, Oakey Hill, 5.iii.2011. NEW
SOUTH WALES: 1 9, Dalmeny, 26.xii.2010. QUEENSLAND: 1 ĝ, Stanthorpe,
from dead wood, 28.xii.2011; 1 9, 1 ĝ, Brisbane, from bark spray, 27.vi.2011; 1 2, 2
36, Brisbane, from bark spray, rainforest, 22.i.2011. TASMANIA: 1 9, Flinders
Island, 27.xi.2011. NORFOLK ISLAND: 1 9, 2 36, 21-26.xii.2012. NEW
CALEDONIA: 1 3, La Foa, from dead Ocimum stems, 5.iv.2012.
Acknowledgement
We are particularly grateful to Desley Tree for her comments on the original
manuscript.
References
ANANTHAKRISHNAN, T.N. 1964. Thysanopterologica Indica I. Entomologisk Tidskrift 85:
99-120.
ANANTHAKRISHNAN, T.N. and SEN, S. 1980. Taxonomy of Indian Thysanoptera.
Zoological Survey of India, Handbook Series 1: 1-234.
MOUND, L.A. 1974. Spore-feeding thrips (Phlaeothripidae) from leaf litter and dead wood in
Australia. Australian Journal of Zoology. Supplement 27: 1-106.
MOUND, L.A. 2004. Australian Thysanoptera — biological diversity and a diversity of studies.
Australian Journal of Entomology 43: 248-257.
MOUND, L.A. 2006. Vicariance or dispersal — trans-Tasman faunal relationships among
Thysanoptera (Insecta), with a second species of Lomatothrips from Podocarpus. Papers and
Proceedings of the Royal Society of Tasmania 140: 11-15.
MOUND, L.A. and PALMER, J.M. 1983. The generic and tribal classification of spore-feeding |
Thysanoptera (Phlaeothripidae: Idolothripinae). Bulletin of the British Museum (Natural |
History), Entomology 46: 1-174.
MOUND, L.A. and TREE, D.J. 2007. Oriental and Pacific Thripidae (Thysanoptera) new to
Australia, with a new species of Pseudodendrothrips Schmutz. Australian Entomologist 34: 7-
14.
MOUND, L.A. and TREE, D.J. 2009. The oriental lily-flower thrips, Taeniothrips eucharii
(Whetzel) (Thysanoptera: Thripidae) new to Australia. Australian Entomologist 35: 159-160.
MOUND, L.A. and TREE, D.J. 2011. New records and four new species of Australian Thripidae
(Thysanoptera) emphasise faunal relationships between northern Australia and Asia. Zootaxa
2764: 35-48.
MOUND, L.A. and WALKER, A.K. 1986. Tubulifera (Insecta: Thysanoptera). Fauna of New
Zealand 10: 1-140.
Australian Entomologist, 2013, 40 (3) 117
MOUND, L.A. and WALKER, A.K. 2012. The Australia-New Zealand connection re-visited,
with two new species of Cartomothrips (Thysanoptera, Phalaeothripidae). Zootaxa 3487: 58-64.
MOUND, L.A. and WARD, A. 1971. The genus Strepterothrips Hood and its relatives with a
description of S. tuberculatus (Girault) comb.n. (Thysanoptera). Journal of the Australian
Entomological Society 10: 98-104.
OKAJIMA, S. 1978. Notes on the Thysanoptera from Southeast Asia III. Two new species of the
genus Azaleothrips Ananthakrishnan (Phlaeothripidae). Kontyu 46: 385-391.
OKAJIMA, S. 1990. The Old World species of Pygothrips (Thysanoptera: Phlaeothripidae).
Systematic Entomology 15: 87-99.
OKAJIMA, S. 1995. The genus Strepterothrips Hood (Thysanoptera, Phlaeothripidae) from east
Asia. Special Bulletin of the Japanese Society for Coleopterology 4: 213-219.
THRIPSWIKI. 2013. Thrips Wiki - providing information on the World's thrips. Thrips.info/wiki/
TREE, D.J. and WALTER, G.H. 2012. Diversity and abundance of fungivorous thrips
(Thysanoptera) associated with leaf-litter and bark across forest types and two tree genera in
subtropical Australia. Journal of Natural History 46: 2897-2918.
MR Australian Entomologist, 2013, 40 (3)
RANGE EXTENSION OF ACRAEA TERPSICORE (LINNAEUS)
(LEPIDOPTERA: NYMPHALIDAE) TO WESTERN AUSTRALIA
DANIEL KING
420 Spencer Road, Thornlie, WA 6108 (Email: drd_king@hotmail.com)
Abstract
Acraea terpsicore (Linnaeus) is recorded from Kununurra, Western Australia.
Discussion - |
Two specimens of Acraea terpsicore (Linnaeus, 1758) (Figs 1-2), a native of |
India and Sri Lanka and recently recorded from the Northern Territory
(Braby et al. 2013), were collected by the author on 11 and 12 May 2013
from two sites in Kununurra, Western Australia. It was also collected in the
area a few weeks earlier (19 April) by Matt Williams (pers. comm.). The first |
site was on the verge of Weaber Plains Road (15.77S, 128.74E) and the
second at the well known Ivanhoe Crossing (15.688, 128.68E). At both sites ©
other specimens were seen but not collected. No specimens were observed at |
Lake Argyle or along the Lake Argyle Road, nor at either Wyndham or The |
Grotto (30 km from Wyndham along the Great Northern Highway). |
Significantly with regard to the species’ dispersal, it was not recorded during |
the recent survey of the El Questro area near Kununurra (Braby 2012) but |
this was the site of Matt Williams’ capture. |
ES
Figs 1-2. Acraea terpsicore from Kununurra, WA: (1) male; (2) female.
Acknowledgements
I thank Michael Braby, Kelvyn Dunn and Matt Williams for their comments.
References
BRABY, M.F...2012. The butterflies of El Questro Wilderness Park, with remarks on the |
taxonomy of the Kimberley fauna, Australia. Records of the Western Australian Museum 27(2): |
161-175.
BRABY, M.F., BERTELSMEIER, C., SANDERSON, C. and THISTLETON, B. 2013. Spatial —
distribution and range expansion of the Tawny Coster butterfly, Acraea terpsicore (Linnaeus, |
1758) (Lepidoptera: Nymphalidae), in South-East Asia and Australia. Insect Conservation and |
Diversity. In press.
Australian Entomologist, 2013, 40 (3): 119-130 5 119
PREDATION ON BUTTERFLIES AND OTHER INSECTS BY
BREEDING RAINBOWBIRDS (MEROPS ORNATUS: MEROPIDAE)
IN SOUTH-EAST QUEENSLAND
ALBERT ORR
School of the Environment, Griffith University, Nathan, Qld 4111
(Email: agorr@bigpond.com)
Abstract
The diet of a family of Rainbowbirds (Merops ornatus Latham) nesting in the Currimundi
Environmental Park, southern Queensland, was investigated over approximately four months.
Three birds were involved, a breeding pair and a helper male. Insect prey was monitored
photographically with 836 items being recorded. The recorded diet of the adults before hatching
and that brought to the nestlings differed considerably, with Hymenoptera being the most
important adult prey class for adults, both numerically and in terms of biomass. However, few
honeybees (Apis mellifera Linnaeus) were eaten by adults. Conversely, the most important
components of the nestling diet in terms of biomass were cicadas, dragonflies (Anisoptera) and
various Diptera. Large numbers of honeybees were also brought to the nestlings during their later
development, particularly by the female bird and these comprised almost all the Hymenoptera
fed to the nestlings. Lepidoptera, chiefly butterflies of all families, formed a minor but
conspicuous part of the diet, particularly of the adults. Relatively fewer were fed to the nestlings,
possibly because of the abundance of cicadas and dragonflies in the foraging territory.
Introduction
Some of the most voracious predators of aerial insects are the Bee-eaters of
the family Meropidae (including the genera Merops, Nyctyornis and
Meropogon), which inhabit the old world tropics and warm temperate
regions. Merops ornatus Latham, also known as the Rainbowbird (Fig. 1), is
found throughout much of Australia, where it breeds in long tunnels
excavated in flat ground or in the vertical faces of river banks and in coastal
dunes (Fry 1984, Higgins 1999). It overwinters mainly in New Guinea and
possibly on islands further west, thus ensuring a continuous supply of insect
food during the Australian winter or tropical dry season. When not nesting,
the birds travel in nomadic groups and are difficult to observe closely but,
when nesting, breeding pairs and often one or more helpers confine their
activities to a small territory around the nest. They rapidly habituate to a
human observer, allowing close visual monitoring of their insect diet.
There has been only limited study of the diet of the Rainbowbird. The
Honeybee, Apis mellifera Linnaeus, is not native to its range but often forms
a large proportion of prey taken, especially around apiaries, where the birds
are regarded as pests and are often shot (McKay 1969). On the other hand,
one report from Victoria claimed that dragonflies (Odonata) supplied the
greatest biomass of food consumed, although they were numerically fewer
than other forms of prey (Fry 1984). Another study reported that larger prey
items were selectively taken to the nest to feed the growing chicks (Fry
1984). Conversely, Calver (1987) reported nestling Rainbowbirds feeding
mainly on Hymenoptera. Lepidoptera reported as casual prey items include
Vanessa cardui (L.) (= kershawi (McCoy)), Vanessa itea (F.), Zizina
120 Australian Entomologist, 2013, 40 (3)
labradus (Godart) and species of Noctuidae (Higgins 1999). Draffan et al. |
(1983) reported migrating Rainbowbirds consuming large numbers of
Eurema hecabe (L.) before making the journey across Torres Strait to New |
Guinea. Additional records of prey captured (but not necessarily eaten) found |
on internet images include Arhopala centaurus (F.). Belenois java (L.) and |
Tirumala hamata (W.S. Macleay). |
Rainbowbirds breed regularly in horizontal tunnels in the banks of the |
northern shore of Currimundi Lake and along the beachfront dunes in front of |
the Currimundi Lake Conservation Park (26°46'12"S, 153°7'19"E). This |
habitat island is a fully protected area of 52 ha of ‘Wallum’. It comprises a
complex association of vegetation types including stunted, fire-climax heath |
with exceptionally high plant diversity and stands of low Casuarina, Banksia |
and Melaleuca. To seaward it is bordered by a narrow, low rainforest-like |
association in the swale behind the sand dunes facing the Pacific Ocean to the |
east. Elsewhere, the park is bounded by the salt water Currimundi Lake to the |
south and dense suburban areas on its northern and western sides. During the
breeding season of 2012, I observed the birds closely and regularly, recording |
their social behaviour and the range of insect prey consumed. |
Area, breeding chronology of birds and methods
From early September 2012 to 6 January 2013, I was able to monitor one |
nesting family of Rainbowbirds consisting of a breeding pair and a helper
male. The two males could be separated by slight differences in the symmetry
of their streamers, visible in most photographs. They occupied a territory
approximately 6 ha in area, including both shores of Currimundi Lake (Fig.
2). To the east and north their territory abutted those of other breeding
groups. Upon arrival, an existing tunnel in a small embayment on the
northern bank of the lake was refurbished, chiefly by the female, until its
final depth was 1.25 m. Several other false tunnels up to 0.35 m long were
constructed or refurbished nearby. Foraging activity was coordinated from an
observation perch ca 10 m high and ca 30 m from the nest entrance. Birds
returned there to eat their prey or, if intended for the nest, to subdue it. When
prey was brought to the nest, the birds almost always first perched at least for
a few seconds on a low ‘nest perch’ ca 4 m from the nest. Almost all prey _
items were photographed when the birds were on the observation perch or the
nest perch using a 70-300 lens mounted on a Nikon D90 DX format SLR
camera. In total, ca 18,000 photographs were taken. It was possible to
identify all butterflies, most cicadas and all Odonata prey to genus or species
and all other groups at least to family, with the exception of a few smaller |
Hymenoptera. Average biomass estimates of all common prey species were
made by weighing fresh killed specimens, collected outside the reserve, on a
milligram balance. When no specimens were available, biomass was
estimated by comparing their linear measurements, easily assessed relative to
the length of the birds’ bills (27-28 mm), with those of known species.
Australian Entomologist, 2013, 40 (3) 121
Fig. 1. Rainbowbirds with prey: (a) helper male on the nest perch with a female
Ogyris zosine; (b) female in flight taking cicada to nest.
observation
perch
CURRIMUNDI LAKE
50m
Fig. 2. Map of study area showing salient features.
122 Australian Entomologist, 2013, 40 (3)
Throughout September and October, the birds were monitored in the vicinity
of the main perch and at other favoured perches around the territory for at
least 30 minutes on most days. Any prey taken was recorded
photographically. On 3 November, courtship feeding was recorded when the
breeding male presented the female with a moth, ?Ophiusa disjungens (Fig. |
3) and a tabanid fly. Judging from the time the female spent in the burrow,
egg laying probably commenced on 7 November, continuing over several
days. Presumably four eggs were laid as four fledglings later appeared with
no evidence of any egg or chick mortality. Brooding was shared by the
female and at least one of the males, probably chiefly the helper. The helper
male soon broke his streamers, greatly facilitating individual recognition. It
was inferred from the behaviour of the birds that the first hatching occurred
on or around 1 December, which suggests an incubation period of 21 days,
similar to the figure reported by Boland (2004). Boland (2004) also reported
asynchronous hatching. From the time of laying, observations in the vicinity
of the nest were increased to one hour per day and later, after hatching, to two
daily one-hour observation periods morning and afternoon. The chicks
fledged between 1 and 5 January 2013 and on the morning of 6 January all
birds disappeared.
Results
Overall
The total number of individuals and biomass representation of different
orders of insects recorded as captured and eaten at either the main perch or at
other perches around the territory is shown in Table 1. Of 167 items recorded,
Hymenoptera were clearly the preferred prey, followed by Diptera, especially
Tabanidae. Only three honeybees were recorded among the prey. Lepidoptera
comprised only 8.4% of individuals and 6.5% of biomass. Most prey items
had a wet mass of >50 mg, although in a few cases smaller insects were
observed taken and swallowed on the wing. Presumably, smaller items do not
justify the expenditure of energy involved in their capture.
Table 1. Breakdown of prey items taken and eaten before hatching of eggs.
individuals percent biomass mg percent
individuals biomass
Hymenoptera 107 64.1 8560 50.0
Diptera 22 13.2 2640 15.4
Lepidoptera 14 8.4 1120 6.5
Coleoptera 9 5.4 630 3.7
Cicadidae 4 2.3 1250 7.3
Odonata 8 4.8 2310 13.5
Other 3 1.7 600 3.5
TOTAL 167 17110
$$$ N N iiiI
Australian Entomologist, 2013, 40 (3) 123
Fig. 3. (a) female Rainbowbird tossing Junonia villida with her mate alongside; (b)
breeding male giving female a nuptial gift (?Ophiusa disjungens) just before breeding;
(c) helper male on nest perch with battered Junonia villida; (d-e), the same battering
Junonia villida.
Conversely, larger items such as dragonflies, cicadas and some butterflies
generally involved considerable handling time, lasting 150 seconds in one
case of Graphium eurypylus (L.) (Fig. 4). Typically, the bird perched on a
124 Australian Entomologist, 2013, 40 (3)
thick branch near the main perch and repeatedly bashed the insect’s head
against it with a characteristic twist of the (bird’s) head, which meant that it
was often turned upside down at the moment of impact. The stunned insect
was several times tossed into the air and caught before being swallowed head
first, wings and all (Fig. 4), with harder parts eventually regurgitated as a
pellet. Such pellets accumulated in large numbers under the main perch.
Table 2 shows the same statistics for prey taken to the nest after hatching. A
total of 669 items was recorded. During this period many insects were also
observed being eaten by the providers, including two butterflies, but their
number was much fewer than the number of prey items taken to the nestlings.
Because observations were concentrated mainly on the nest, it is considered
that these records are not comparable with either pre-hatching feeding
records or with nest provisioning rates; hence they are not included in the
general analysis.
Table 2. Breakdown of prey items captured and taken to feed nestlings after hatching.
individuals percent biomass mg percent
individuals biomass
Hymenoptera 178 26.6 15130 8.8
Diptera 146 21.8 21906 12.8
Lepidoptera 24 3.6 2200 1.3
Coleoptera 3 0.5 240 0.1
Cicadidae 213 31.8 103850 60.5
Odonata 87 13.0 24270 14.1
Other 18 2.7 3960 2.3
TOTAL 669 171556
The range of prey taken to the nestlings differed greatly from the adult diet,
with cicadas, especially Psaltoda harrisii (Leach), Tamasa tristigma
(Germar) and Cicadetta sp. accounting for more than 30% numerically and
60% of biomass. Significant biomass was also contributed by Odonata,
mainly Adversaeschna brevistyla (Rambur) and Hemicordulia sp. and by
Diptera, including Apiocera sp. (Apioceridae), Rutilia sp. (Tachinidae),
Tabanidae and a few Asilidae. Hymenoptera were far less important in the
diet and almost all were honeybees, brought to the nest principally by the
female between 1400-1600h, starting when the nestlings were about 15 days
old. At first she brought devenomed individuals, then dead but intact
specimens, then, just before fledging, living bees. At times she brought
honeybees to the nest at a rate of almost one per minute, sometimes impeding
the helper male in his efforts to deliver food. It is tempting to interpret these
bouts of honeybee provisioning as educational, designed to teach the young
to cope with venomous Hymenoptera after they leave the nest. The helper
Australian Entomologist, 2013, 40 (3) 125
Fig. 4. Helper male tossing and swallowing a male Graphium eurypylus on a thick
‘anvil’ branch behind the main perch.
126 Australian Entomologist, 2013, 40 (3)
male also brought a few bees, mainly devenomed, towards the end of the
chicks’ development.
Lepidoptera
Lepidoptera generally made up a relatively small proportion of the diet with
just 14 taken prior to hatching, 24 taken to the nest and 2 eaten during the
nest provisioning period. All butterfly families were represented and there
were just two moths, one Erebidae and one Noctuidae (following Zahari et al.
2012). Lepidoptera formed a significantly smaller proportion of the nestlings’
diet than that of adult birds (P<0.01 test of proportions). Table 3 shows all
Lepidoptera captured, a range of which are illustrated in Figs 5 and 6, and the
individual birds which took them. The greater number taken by the female
probably reflects the fact that she was most active in provisioning the nest
overall. Conversely, the breeding male caught only four lepidopterans, one
given to the female before courtship, one taken to the nest just before
fledging and two eaten before breeding. Overall, the breeding male took
relatively few items to the nest, but once chicks were fledged they stayed
very close to him, watching his hunting sallies closely. They begged and
were fed by him.
Table 3. Total of all Lepidoptera taken by each bird during the study, including items
eaten and items fed to nestlings.
—
female helper male breeding male
PREY Merops ornatus Merops ornatus Merops ornatus
Trapezites symmomus 6 1
Ocybadistes ?walkeri 1l
Telicota ?colon 1 1
Cephrenes augiades 5
Graphium eurypylus 2
Graphium sarpedon 2
Catopsilia pomona 2 1
Junonia villida 3 2 2
Vanessa itea 1
Ogyris zosine 3 2
Theclinesthes miskini 2
Nacaduba berenice
?Ophiusa disjungens 1
? Spodoptera sp. l
TT e a
—
Australian Entomologist, 2013, 40 (3) 127
Fig. 5. Range of Lepidoptera prey: (a) Trapezites symmomus; (b) Catopsilia pomona,
(c) Graphium sarpedon; (d) Cephrenes augiades; (e) Telicota ?colon; (f) ?Spodoptera
sp.
128 Australian Entomologist, 2013, 40 (3)
Fig. 6. Range of Lepidoptera prey: (a) Nacaduba berenice; (b) Theclinesthes miskini;
(c) Ogyris zosine male; (d) Ogyris zosine female; (e) Cephrenes augiades shattering
as bird crushes it with its bill; (f) tossing Cephrenes augiades.
Australian Entomologist, 2013, 40 (3) 129
When the nestlings were newly hatched, prey was thoroughly processed
before being taken to them. The wings of dragonflies were removed, while
butterflies were pulverised and their wings removed as far as possible, to the
point where they were unrecognisable (Figs 3 c-e). After about ten days, dead
but otherwise intact butterflies were fed to the chicks.
Discussion
Rainbowbirds are opportunistic predators that are said to always take their
prey on the wing (Fry 1984). Although they are clearly behaviourally adapted
to catch and process venomous Hymenoptera, other groups such as Diptera,
Odonata (Orr 2013) and cicadas can obviously represent an important food
source when available. Lepidoptera in this case were of less importance, but
this may have reflected their relative availability. Also, with their broad
wings they may create more problems with handling and swallowing then
other larger insects such as dragonflies and cicadas. Nevertheless, the present
study documents predation on 12 species of butterfly, only one of which,
Vanessa itea, is recorded in literature. Thirty-four percent of these are
hesperiids, which with their stout bodies and narrow wings may offer a better
nutritional return versus handling effort than other species. Also, as far as is
known, all local hesperiid species are palatable to vertebrates.
It is of interest that Delias argenthona (F.), one of the commonest butterflies
present throughout the study, often flew close to the main perch but was
never attacked or even looked at. It has been established that Delias nigrina
(F.) possess emetic properties that are effective against some birds (Orr 1999,
Orr and Kitching 2010) and very probably the same is true of D. argenthona.
Other reasonably common species ignored included Euploea core (Cramer),
Tirumala hamata and Papilio aegeus Donovan. The first two are generally
thought to be toxic or unpalatable due to cardeneloids and/or pyrrholozidine
alkaloids, gained respectively from their asclepiadaceous and apocynaceous
host plants (Ackery and Vane Wright 1984). As noted above, a photograph
on the internet shows a Rainbowbird with a T. hamata in its bill, but this is
not conclusive proof that it swallowed it. Papilio aegeus is probably only
moderately palatable but the size of its wings would necessitate much
handling before it could be swallowed. Evidence that size may be a deterrent
comes from an aborted attack on a Polyura sempronius (F.), first sighted
about 40 m away; the female bird had swooped on the butterfly from behind,
but at the last moment pulled away. Belenois java is probably only
moderately palatable (see Turner 1984 for discussion of the palatability
spectrum) and, as with 7. hamata, there is a photograph of one in the bill of a
Rainbowbird on the internet. Again, this does not prove it was consumed. In
November, B. java adults were extremely abundant for about four days but
elicited no interest from the birds. However, as they were only briefly present
it is possible the birds were unwilling to attack them because of their
unfamiliarity.
130 Australian Entomologist, 2013, 40 (3)
Once the chicks had fledged they remained close by a parent, typically their
father. Every foraging flight by the adult bird was closely watched and, after
a few days, the young attempted to catch insects themselves, generally with
indifferent results. When one observes how closely the young birds watch
their parents foraging, it seems possible that avoidance of putatively
distasteful or toxic species such as Delias may be learned culturally, without
any experimentation by naive birds as is usually supposed. It is also of
interest that, although Ogyris zosine (Hewitson) shares the same food plants
as Delias argenthona, it clearly is palatable to Rainbowbirds. No doubt the
sequestration of toxic compounds from a host plant depends on the
physiology of each species and may vary within species.
Acknowledgement
I would like to thank Mr E.D. Edwards for assistance with identification of
the two moths.
References
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biology. British Museum (Natural History), London; ix + 429 pp.
BOLAND, C.R.J., 2004. Breeding biology of rainbow bee-eaters (Merops ornatus): a migratory,
colonial, cooperative bird. Auk 121: 811-823.
CALVER, M.C., SAUNDERS, D.A. and PORTER, B.D. 1987. The diet of nestling Rainbow
bee-eaters, Merops ornatus, on Rottnest Island, Western-Australia, and observations on a non-
destructive method of diet analysis. Australian Wildlife Research 14: 541-550.
DRAFFAN, R.D.W., GARNETT, S.T and MALONE, G.J. 1983. Birds of the Torres Strait: an
annotated list and biogeographical analysis. Emu 83(4) 207-234.
FRY, C.H. 1984. The Bee-eaters. Poyser, Calton UK; 304 pp + 8 col. plates.
HIGGINS, P.J. 1999. Handbook of Australian, New Zealand and Antarctic Birds, vol. 4: Parrots
to Dollarbirds. Oxford University Press, Melbourne; Meropidae 1209-1225.
McKAY, C. 1969. Notes on Myrops (sic) ornatus Latham. Australasian Beekeeper 71: 105-106.
ORR, A.G. 1999. Evidence for unpalatability in the genus Delias Hübner (Lepidoptera: Pieridae)
and its role in mimetic assemblages. Australian Entomologist 26: 45-52.
ORR, A.G. 2013. The importance of dragonflies as food for breeding Rainbowbirds in
subtropical eastern Australia. Agrion. In press.
ORR, A.G. and KITCHING, R.L. 2010. The butterflies of Australia. Allen & Unwin, Sydney;
viii + 328 pp.
TURNER, J.R.G. 1984. Mimicry: the palatability spectrum and its consequences. In: Vane-
Wright, R.I. and Ackery, P.R. (eds), The biology of butterflies. Symposium of the Royal
Entomological Society of London 11: 141-161.
ZAHIRI, R., HOLLOWAY, J.D., KITCHING, I.J., LAFONTAINE, J.D., MUTANE, M. and
WAHLBERG, N. 2012. Molecular phylogenetics of Erebidae (Lepidoptera, Noctuoidea).
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Australian Entomologist, 2013, 40 (3): 131-135 131
THE FIRST RECORD OF ORTALOTRYPETA ISSHIKIT
(MATSUMURA) AND SUBFAMILY TACHINISCINAE (DIPTERA:
TEPHRITIDAE) FROM INDIA, WITH REDESCRIPTION OF THE
SPECIES
K.J. DAVID! and D.L. HANCOCK?
National Bureau of Agriculturally Important Insects, P. B. No. 2491, H. A. Farm Post, Bellary
Road, Hebbal, Bangalore-560024, Karnataka, India (Email: davidento@gmail.com)
?8/3 McPherson Close, Edge Hill, Cairns, Qld 4870
Abstract
Ortalotrypeta isshikii (Matsumura) and subfamily Tachniscinae are recorded for the first time
from India and the species redescribed.
Introduction
The Tachiniscinae is regarded as one of the most primitive subfamilies of
Tephritidae (Korneyev 1999, Korneyev and Norrbom 2006). It is
characterised by the presence of: (i) a short-pubescent arista; (ii) 1-3 (usually
2) postpronotal setae; (iii) 1-2 postsutural supra-alar setae; (iv) oviscape
opened posterodorsally; (v) eversible membrane of the ovipositor devoid of
taeniae but with basoventral area of dense, very dark, larger scales; and (vi)
aculeus short and stiletto-like (Korneyev 1999). Members of this subfamily
are represented in the Afrotropical, Oriental, Australasian, Palaearctic and
Neotropical Regions of the world.
Two tribes, Tachiniscini Kertész and Ortalotrypetini Ito, are recognised, each
with five genera. The Tribe Ortalotrypetini includes Ortalotrypeta Hendel
and Cyaforma Wang from the Palaearctic and Oriental Regions, plus
Ischyropteron Bigot, Neortalotrypeta Norrbom and Agnitrena Korneyev
from the Neotropical Region (Norrbom 1994, Korneyev 1999, Korneyev and
Norrbom 2006). The Tribe Tachiniscini comprises fossil Protortalotrypeta
Norrbom and extant Tachinisca Kertész from the Neotropical Region, plus
Bibundia Bischof and Tachiniscidia Malloch from the Afrotropical Region
and Aliasutra Korneyev from Australia, the latter only recently described
(Korneyev and Norrbom 2006, Korneyev 2012).
The only known biological record for the subfamily is of an undescribed
species of Bibundia (tribe Tachiniscini) reared from pupae of two saturniid
moths (Lepidoptera: Saturniidae) in Africa (Roberts 1969), although
Korneyev (1999) noted that the form of the aculeus suggests that all members
of the subfamily are parasitoids.
Ortalotrypeta includes yellow to orange-bodied flies with well developed
chaetotaxy and a yellowish to milky-white wing with brown bands and spots
(Wang 1998). Nine species are currently recorded from China, Taiwan,
Japan, Nepal and Vietnam (Norrbom 1994, Wang 1998). Ortalotrypeta
isshikii (Matsumura), the most widespread species known previously from
China, Japan and Nepal, is recorded here for the first time from India.
132 Australian Entomologist, 2013, 40 (3)
Material and methods
The specimen examined was in the Commonwealth Institute of Biological
Control (CIBC) collection deposited in the University of Agricultural
Sciences, Bangalore, India (UASB). The specimen was identified using the
keys by Norrbom (1994) and Wang (1998). Images were captured using a
Leica DFC 420 camera mounted on a Leica M205A stereozoom microscope;
the images were stacked and combined to a single image using Combine ZP
(Hadley 2011).
Systematics
Ortalotrypeta Hendel, 1927
Ortalotrypeta isshikii (Matsumura, 1916)
(Figs 1-7)
Material examined. INDIA: 19, Sikkim, Lachung, vii.1960, resting on silver fir,
CIBC coll. (UASB).
Description. Body orange-yellow in ground colour, 7.4 mm long. Head (Fig.
1) orange-yellow; anterior margin of face and parafacial strongly receded
ventrally. Frons 1.6 times as broad as eye, with 3 pairs of frontal setae and 2
pairs of orbital setae. Frons setulose between the three pairs of frontal setae.
Ocellar seta, medial and lateral vertical setae longer than posterior orbital
seta, postocellar seta present, postocular row thin and black. Antenna shorter
than face, arista short-pubescent. Gena and postgena broad, occiput swollen.
Thorax (Figs 2-3) with scutum 2.3 mm long, orange-yellow covered with
black setulae. Chaetotaxy: 3 postpronotal, 1 anterior notopleural, 1 posterior
notopleural, 1 presutural supra-alar, 2 postsutural supra-alar, 1 postalar, 1
intra-alar, 1 dorsocentral (aligned with anterior supra-alar seta) and 1
prescutellar acrostichal seta. Scutellum yellow with 3 pairs of scutellar setae.
Proepisternum with three setae longer than postocular seta. Anepisternum
setulose, with three setae anterior to anepisternal phragma; anepimeron and
katepisternum each with single seta.
Legs (Fig. 6) yellow; forefemur setulose with two rows of long dorsal setae
and a single row of ventral setae; mid and hindfemur with sub-dorsal setae.
Foretibia devoid of setae; mid and hindtibia with 1 and 2 rows of dorsal setae
respectively; midtibia with 2 large ventroapical spur-like setae.
Wing (Fig. 7) 8.4 mm long; veins R; and R4 with setulae throughout their
entire length; predominantly hyaline to pale brown with dark brown spot in
pterostigma which extends to cell rj, isolated ovoid spot on crossvein R-M,
dark apical mark including subapical band over DM-Cu and extending along
apical section of vein M to wing apex then extending into cell r23, large oval
hyaline spot in distal half of cell r4,s, hyaline indentation in cell m, subapical
hyaline spot in cell dm, large subhyaline area in cell br.
|
Australian Entomologist, 2013, 40 (3) 133
Abdomen (Figs 4-5) with tergites yellow, black setulose. Oviscape yellow
basally and black apically.
Figs 1-3. Ortalotrypeta isshikii: () eee 0) 7 ee pue view; 3) thorax, ven
view.
134 Australian Entomologist, 2013, 40 (3)
Figs 4-7. Ortalotrypeta isshikii: (4) abdomen, dorsal view; (5) abdomen, lateral view;
(6) legs; (7) wing.
Australian Entomologist, 2013, 40 (3) 135
Comments. The above specimen, plus those recorded from Nepal by
Norrbom (1994), differ from typical O. isshikii from Japan and China in
having the brown spot in the pterostigma extending into cell rj; in typical
specimens cell rı is entirely yellowish. In the absence of further evidence this
variation is regarded as infraspecific, although some possibility that the
Indian and Nepalese specimens represent a separate species exists.
Elsewhere, O. isshikii appears to be widespread, being recorded from Japan
(Honshu, Shikoku, Kyushu) and the Chinese mainland (Hubei, Sichuan,
Xizang [Tibet]) by Wang (1998).
This is the only species of Ortalotrypeta known with certainty to occur south
of the Chinese or Tibetan borders. Records of O. gigas Hendel, 1927 and O.
idanina Zia, 1963 from southern Vietnam, based on a single specimen of
each from Ho Chi Minh City, collected in July 1939 (Wang 1998), are of
uncertain provenance (no collector indicated) and are likely to have been
mislabelled.
References
HADLEY, A. 2011. Combine ZP (Accessed 11 January 2013). http://hadleyweb.pwp.
blueyonder.co.uk/CZM/News.htm
KORNEYEV, V.A. 1999. Phylogenetic relationships among higher groups of Tephritidae. Pp
73-113, in: Aluja, M. and Norrbom, A.L. (eds), Fruit flies (Tephritidae): phylogeny and
evolution of behavior. CRC Press, Boca Raton; xviii + 944 pp.
KORNEYEV, V.A. 2012. A new genus and species of the subfamily Tachiniscinae (Diptera,
Tephritidae) from Australia. Records of the Australian Museum 64(3): 159-166.
KORNEYEV, V.A. and NORRBOM, A.L. 2006. Genera of the subfamily Tachiniscinae
(Diptera: Tephritidae) with discussion of the position of Descoleia and Nosferatumyia, gen. n.
(Tephritoidea incertae sedis). Pp 105-155, in: Merz, B. (ed.), Phylogeny, taxonomy, and biology
of tephritoid flies (Diptera, Tephritoidea). Instrumenta Biodiversitatis VI. Muséum histoire
naturelle, Geneva; 274 pp.
NORRBOM, A.L. 1994. New genera of Tephritidae (Diptera) from Brazil and Dominican
amber, with phylogenetic analysis of the tribe Ortalotrypetini. Insecta Mundi 8(1-2): 1-15.
ROBERTS, H. 1969. Forest insects in Nigeria with notes on their biology and distribution.
Institute Paper, Commonwealth Forestry Institute, Oxford 44: 206 pp.
WANG, X.-J. 1998. The fruit flies (Diptera: Tephritidae) of the East Asian Region. Acta
Zootaxonomica Sinica 21: Supplement (1996); viii + 419 pp.
136 Australian Entomologist, 2013, 40 (3)
A YELLOW-FORM MALE OF DELIAS MYSIS MYSIS (FABRICIUS)
(LEPIDOPTERA: PIERIDAE) FROM NORTHERN QUEENSLAND
DAVID L. HANCOCK
8/3 McPherson Close, Edge Hill, Cairns, Qld 4870
Abstract
A male Delias mysis mysis (Fabricius), with the red hindwing band on the underside replaced by
yellow, is reported from northern Queensland and illustrated.
Discussion
Orr and Kitching (2010) noted that at least one female specimen of Delias
mysis mysis (Fabricius, 1775) was known that had the red pigment of the
underside submarginal hindwing band replaced by yellow; they also provided
an illustration and a discussion of how this change occurs.
The first known male showing this colour aberration (Fig. 1) is recorded and
illustrated here. It bears the label data ‘Mourilyan Hbr, nr Innisfail, N. Qld,
18.viii.1971, D. L. Hancock’. The specimen is lodged in the Queensland
Museum, Brisbane (QM Reg. No. T190783).
Fig. 1. Delias mysis mysis: yellow-banded form from Mourilyan Harbour, Qld.
Acknowledgement
I thank Federica Turco (Queensland Museum) for locating and photographing
the specimen.
Reference
ORR, A.G. and KITCHING, R.L. 2010. The butterflies of Australia. Allen & Unwin, Sydney;
viii + 328 pp.
Australian Entomologist, 2013, 40 (3): 137-171 137
A REVIEW OF THE POLYRHACHIS ACULEATA SPECIES-GROUP
OF THE SUBGENUS MYRMA BILLBERG (HYMENOPTERA:
FORMICIDAE: FORMICINAE), WITH KEYS AND DESCRIPTIONS
OF NEW SPECIES
RUDOLF J. KOHOUT
Biodiversity Program, Queensland Museum, PO Box 3300, South Brisbane, Qld 4101
(Email: rudolf-kohout@qm.qld.gov.au)
Abstract
The Polyrhachis aculeata species-group of the subgenus Myrma Billberg is reviewed. Seventeen
species of the group are recognised, including nine previously described: Polyrhachis aculeata
Mayr, P. cybele Wheeler, P. diana Wheeler, P. gibbosa Forel, P. hemiopticoides Mukerjee, P.
latona Wheeler, P. murina Emery, P. numeria Fr. Smith and P. pubescens Mayr. Two former
subspecies, Polyrhachis murina selecta Forel and P. pubescens alatisquamis Forel, are raised to
specific status and six species are described as new: Polyrhachis dimoculata, P. kebunraya, P.
noonananti, P. palawanensis, P. starri and P. watanasiti. Polyrhachis alatisquamis is
redescribed and the previously unknown queens of P. cybele, P. latona and P. pubescens are
described. A neotype of Polyrhachis pubescens Mayr and a lectotype of P. murina Emery are
designated. A key to the species of the group is included. All species are illustrated and their
known distributions summarised.
Introduction
The subgenus Myrma Billberg is the most widespread of all the Polyrhachis
subgenera, occurring throughout the Indo-Malayan, Oriental, Australasian
and Ethiopian regions. It is also the second most speciose subgenus,
comprising more than one hundred described species and subspecific forms.
In an attempt to partition the substantial diversity in such a large subgenus,
Emery (1925) established five species-groups, two Afrotropical: laboriosa
and viscosa-decemdentata; two South East Asian: abrupta and zopyrus; and
one occurring in both regions: militaris-relucens. Chapman (1963) described
a new monotypic subgenus, Anoplomyrma, to house his P. parabiotica from
the Philippines; however, Hung (1967) considered this subgenus to be closely
related to Myrma. Dorow (1995) concurred with Hung’s opinion and listed
Anoplomyrma as a junior synonym of Myrma. Kohout (2006) established the
P. parabiotica species-group, essentially equivalent to Chapman’s
Anoplomyrma, again placing it within the subgenus Myrma.
In his revision of the Afrotropical species, Bolton (1973) recognised six
species groups: alexisi, gamaii, militaris, monista, revolii and viscosa, all
restricted to the Ethiopian region. A year later (Bolton 1974), he introduced
the inermis species-group for several South East Asian species, including
some placed by Emery (1925) in the very similar zopyra-group. Kohout
(1989) included all four Australian species of Myrma in the relucens species-
group. Dorow (1995) listed all of Bolton’s Afrotropical species-groups;
however, he did not attempt to subdivide the Australasian fauna and only
mentioned the previously established abrupta, zopyra and relucens species-
groups (Emery 1925) in his introduction to the subgenus.
138 Australian Entomologist, 2013, 40 (3)
Kohout (1998), dealing with the South East Asian and Australasian fauna of
Myrma, included four species-groups, the pre-existing re/ucens and inermis
groups and the new continua and aculeata groups, although he did not
provide diagnoses for either. The continua group comprised several closely
allied Melanesian species while the aculeata-group included a single species.
Ten years later, Kohout (2008) proposed a new vestita-group for several
closely allied species endemic to Sulawesi and provided diagnoses for the
continua, inermis and zopyra species-groups. Here, I diagnose the aculeata-
group and outline the combination of characters clearly separating it from the
other members of the subgenus Myrma. Besides six species described here as
new, I consider the aculeata-group to contain P. diana Wheeler, P. latona
Wheeler and P. numeria Fr. Smith, placed by Emery (1925) into the
combined militaris-relucens species-group, and P. aculeata Mayr, P. cybele
Wheeler, P. gibbosa Forel, P. alatisquamis Forel, P. murina Emery, P.
pubescens Mayr and P. selecta Forel, listed by him in the abrupta-group, plus
P. hemiopticoides Mukerjee, described since Emery’s work was published.
Currently, the Afrotropical fauna of Myrma remains divided into six species-
groups, all restricted to the region, as proposed by Bolton (1973), while the
number of species-groups for the Oriental and Australasian fauna has
increased to nine. Following the transfer of most of its members to the
aculeata-group, the abrupta-group now comprises only a single, name-
bearing species, P. abrupta Mayr from Halmahera. The parabiotica-group
introduced by Kohout (2006) and the cyaniventris-group established by
Sorger and Zettel (2009) each include three species, all apparently endemic to
the Philippines, while the vestita-group is restricted to the Indonesian island
of Sulawesi. The recently revised continua-group (Kohout 2013) comprises
mostly Melanesian elements. The inermis and zopyra species-groups almost
equally share the species originally included by Emery (1925) in a single
zopyra-group, and both are distributed from Sri Lanka and India across
Indonesia and the Philippines. Finally, the re/ucens-group, the largest and
most widespread of the Oriental and Australasian species-groups, comprises
a diverse assemblage of species that could conceivably be subdivided into
several more morphologically uniform species-groups.
Methods
Publication dates and spelling of species epithets and authors’ names follow
Bolton et al. (2007). This study is principally based on the worker caste but
diagnoses and notes are provided for queens of several species.
Images of specimens were taken with a digital camera attached to a
stereomicroscope and processed using Auto-Montage (Syncroscopy, Division
of Synoptics Ltd, USA) and Adobe CS2 (Adobe Systems Inc, USA)
software. Unless otherwise indicated, all images of the new species depict
their primary types. Those of previously described species depict types or
Australian Entomologist, 2013, 40 (3) 139
type-compared voucher specimens. Most photographs were taken by Dr
Steve O. Shattuck (ANIC), Assoc. Prof. Dr Yoshiaki Hashimoto (MNHA)
and Hans Peter Katzmann (UUUG). Photographs of P. numeria were taken
by the AntWeb.org team and are reproduced here by the courtesy of Dr Brian
L. Fisher (CASC).
Measurements and indices follow those of Kohout (2008): TL = Total length
(the necessarily composite measurement of the outstretched length of the
entire ant measured in profile); HL = Head length (the maximum measurable
length of the head in perfect full face view measured from the anterior-most
point of the clypeal border or teeth, to the posterior-most point of the
occipital margin); HW = Head width (width of the head in perfect full face
view, measured immediately in front of the eyes); CI = Cephalic index (HW
x 100/HL); SL = Scape length (excluding the condyle); SI = Scape index (SL
x 100/HW); PW = Pronotal width (width of the pronotal dorsum measured at
the bases of pronotal spines); MTL = Metathoracic tibial length (maximum
measurable length of the tibia of the hind leg). All measurements were taken
using a Zeiss SR stereomicroscope with an eyepiece graticule calibrated
against a stage micrometer. All measurements are expressed in millimetres
(mm).
Abbreviations used in specimen data are: c. — circa; Cons. — Conservation;
Distr. — District; For. — Forest; NP — National Park; nr — near; Prov. —
Province; Pt — Point; Ra. — Range; Rd — Road; Riv. — River; rf. — rainforest;
w —worker/s; WS — Wildlife Sanctuary.
Institutions and depositories (with the names of cooperating curators) are:
AMNH — American Museum of Natural History, New York, NY, USA (Dr
J.M. Carpenter); ANIC — Australian National Insect Collection, CSIRO,
Canberra, ACT, Australia (Dr S.O. Shattuck); BMNH — The Natural History
Museum, London, UK (S. Ryder); BZMI — The Bogor Zoological Museum,
Java, Indonesia (Dr Rosichon Ubaidillah); CASC — California Academy of
Sciences, San Francisco, CA, USA (Dr B.L. Fisher); GUGG — Göttingen
University, Göttingen, Germany (M.M. Boss); IMCI — Indian Museum,
Calcutta, India; IRSN — Institut Royal des Sciences Naturelles de Belgique,
Brussels, Belgium (Drs P. Grootaert, P. Dessart, J. Constant); ITBC —
Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah,
Kota Kinabalu, Sabah, Malaysia (Prof. Datin Dr Maryati Mohamed, Dr
Bakhtiar E.Y.); IZAS — Institute of Zoology, Ukrainian Academy of
Sciences, Kiev, Ukraine (Dr A.G. Radchenko); JCUT — James Cook
University, Townsville, Queensland, Australia (Prof. Dr S.K.A. Robson);
MCZC — Museum of Comparative Zoology, Harvard University, Cambridge,
MA, USA (Dr S.P. Cover); MHNG — Muséum d’Histoire Naturelle, Geneva,
Switzerland (Dr B. Merz); MNHA — Museum of Nature and Human
Activities, Hyogo, Japan (Assoc. Prof. Dr Yoshiaki Hashimoto); MNHU —
Museum fiir Naturkunde, Humboldt-Universitat, Berlin, Germany (Dr F.
140 Australian Entomologist, 2013, 40 (3)
Koch); MSNG — Civic Museum of Natural History ‘G. Doria’, Genova, Italy
(Dr R. Poggi, F. Penati), NHMW — Naturhistorisches Museum, Wien,
Austria (Drs H. Zettel, D. Zimmermann); NMCR — National Museum,
Prague—Kunratice, Czech Republic (Dr J. Macek); OUMNH — Hope
Entomological Collections, Oxford University Museum of Natural History,
Oxford, UK (Drs D.J. Mann, J.E. Hogan); PSUT — Prince of Songkla
University, Hat Yai, Songkhla Prov., Thailand (Drs S. Watanasit, Nawee
Noon-anant); PUPI — Punjabi University, Patiala, India (Dr H. Bharti);
QMBA — Queensland Museum, Brisbane, Qld, Australia (Drs C.J. Burwell,
G.B. Monteith); RMNH — Nationaal Natuurhistorisch Museum, Leiden, The
Netherlands (Dr Ing. C. van Achterberg); SKYC — Kagoshima University,
Kagoshima, Japan (Prof. Dr S. Yamane); SMNS — Staatliches Museum fiir
Naturkunde, Stuttgart, Germany (Dr J. Ketterl); UUUG — University of Ulm,
Ulm, Germany (H.P. Katzmann).
Systematics
Genus Polyrhachis Fr. Smith, 1857
Polyrhachis Fr. Smith, 1857: 58. Type species: Formica bihamata Drury, 1773: 73,
pl. 38, figs 7, 8, worker; by original designation.
Subgenus Myrma Billberg, 1820
Myrma Billberg, 1820: 104. Type species: Formica militaris Fabricius, 1781: 493; by
subsequent designation of Wheeler, 1911: 859.
Myrma Billberg; Wheeler, 1911: 859 (as genus and senior synonym of Polyrhachis
Fr. Smith, 1857).
Myrma Billberg; Wheeler, 1922: 993 (as subgenus of Polyrhachis Fr. Smith, 1857).
Polyrhachis aculeata species-group
Characters of the P. aculeata species-group
Worker. Relatively small ants (HL <1.90) with characteristics of the genus
and subgenus. Head with closely approximated frontal carinae. Most species
with peculiar, posteriorly truncate eyes, closely resembling those in species
of the subgenus Hemioptica Roger; however, eye shape varying within group
from posteriorly truncate (as in P. aculeata Mayr), to relatively flat and
conspicuously posteriorly protracted (as in P. pubescens Mayr or P.
palawanensis sp. nov.), or only mildly truncate (as in P. Jatona Wheeler or P.
numeria Fr. Smith), or virtually normal (as in P. murina Emery). Dorsum of
mesosoma laterally marginate, evenly convex in side view, with only weakly
indicated border between propodeal dorsum and declivity (as in P. aculeata),
or with a distinct transverse carina dividing propodeal dorsum from shallowly
concave declivity (as in P. palawanensis sp. nov.). Pronotal shoulders armed
with relatively strong, acute, anterolaterally directed spines that are relatively
long (as in P. aculeata) or short (as in P. murina); propodeum armed with
upturned, acute, minute teeth or tubercles. Petiolar node armed with two
moderately long (as in P. aculeata or P. selecta Forel) or relatively short
C O eee
Australian Entomologist, 2013, 40 (3) 141
spines (as in P. noonananti sp. nov.); spines situated at dorsolateral angles of
petiole and separated by transversely broad, more-or-less convex, dorsal
margin, which is mostly entire but may be furnished with an intercalary tooth
(as in P. aculeata and P. dimoculata sp. nov.), or weakly medially notched
(as in P. cybele). Lateral margin of petiole below base of spine with a
relatively short tooth (as in P. cybele or P. pubescens), or a somewhat
lengthened and flattened tooth (as in P. murina or P. starri sp. nov.), which is
entire or dorsally notched.
Queen. Apart from larger size and usual sexual characters, including three
ocelli and fully developed mesosoma with wings, very similar to worker.
Male. The male is known for only three species: P. aculeata (see Forel, 1893:
28), P. selecta (Forel, 1911: 215-216) and P. pubescens (Fuminori Ito,
private collection and QMBA). Their diagnosis is beyond the purpose and
scope of this paper.
Within the group the species tend to polarise into two complexes, centring on
either P. aculeata or P. pubescens. The Polyrhachis aculeata-complex
includes jet-black species with the whole body smooth and highly polished
(except in P. dimoculata). Pilosity in this group consists of medium length,
erect or semierect hairs, variously distributed over most body surfaces, that
range from rather sporadic (as in P. hemiopticoides Mukerjee) to relatively
abundant (as in P. gibbosa Forel). Closely appressed pubescence is virtually
lacking in most species, except in P. gibbosa, where it is present mostly
along the lateral margins of the mesosomal dorsum and sides. The aculeata-
complex is known from Sri Lanka, India and Thailand eastwards to the
Philippines, Borneo and Indonesia, including Sumatra, Java and Sulawesi.
The pubescens-complex includes species with dorsal body surfaces more-or-
less distinctly reticulate-punctate or longitudinally striate, with the sculpture
of most species partly or completely obscured by closely appressed, rather
abundant, silvery-grey or golden pubescence. Species in this complex have
rather short, erect hairs distributed in various densities over most body
surfaces. The pubescens-complex is known from India, Thailand, Vietnam,
China, Taiwan and Japan and southwards to the Philippines, Peninsular
Malaysia, Borneo, Sumatra, Java and Sulawesi.
Key to Polyrhachis aculeata-group species
(Based on worker caste).
1 Dorsal body surfaces smooth, highly polished, mostly glabrous (e.g. Figs
6, 15), only rarely with scattered long hairs or a pile of sparse whitish
pubescence in some species (Figs 4, 13) (aculeata-complex, in part) ...... 2
- Dorsal body surfaces finely sculptured, reticulate-punctate or
longitudinally striate, semi-polished or opaque with sculpture often
obscured by abundant, closely appressed, silvery-grey or golden
pubescence (e.g. Figs 25, 36) ...sessesesesessessessssessesnssnsssesnessenseneeneenenssnnenecnes 6
142
Australian Entomologist, 2013, 40 (3)
Pronotal spines long and slender, more than 2x as long as width at their
bases; dorsal petiolar spines relatively long (e.g. Figs 4, 5)... 3
Pronotal spines relatively short, broad-based, only about 1.5x as long as
width at their bases; dorsal petiolar spines reduced to short, acute teeth
(Figsili7,-1'8)\(Chailand) ech ass N E P. noonananti sp. nov.
. Distinct pile of relatively long, appressed, silvery or whitish pubescence
rather abundant over most body surfaces, notably along lateral margins of
mesosomal dorsum and sides (Figs 10, 13); petiolar spines rather stubby,
distinctly dorso-medially flattened (Sri Lanka) .............++: P. gibbosa Forel
Short, appressed, silvery or whitish pubescence very sparse on pronotal
collar and sides of mesosoma and petiole, virtually absent from most
dorsal body surfaces; petiolar spines slender, only weakly flattened or
almostiroundtinicross-sectionimen smite E 4
Body slender with long and slender pronotal and petiolar spines; antennal
scapes with numerous, erect or semierect hairs; appendages generally
lightireddish\brown¥at2t=. 5 aah scene oe, ae Denn ne A apeane 5
Body broader with shorter and thicker pronotal and petiolar spines;
antennal scapes without hairs or with only a few hairs along superior
edge; appendages distinctly darker, medium to dark reddish brown (Figs
6, 7) (Borneo, Sumatra, Java, Sulawesi, Philippines) .... P. cybele Wheeler
Relatively long, erect or semierect hairs rather abundant over most body
surfaces (Figs 1, 4) (India, Sri Lanka) ......cccceseseseeeee P. aculeata Mayr
Relatively long, erect or semierect hairs present on front of head, gastral
apex and appendages; hairs virtually absent from vertex of head, dorsum
of mesosoma and petiole (Fig. 15) (India, Thailand, Laos) .......:.sssseseseees
eaaa aaa aa A E OA A E A P. hemiopticoides Mukerjee
Head, mesosoma and petiole very finely sculptured, semi-polished; gaster
highly polished; pilosity and pubescence virtually absent from all dorsal
body surfaces (Figs 3, 8, 9) (aculeata-complex, in part) (Borneo) ............
TARTTI EET LLE teres ee te te TTT P. dimoculata sp. nov.
Head, mesosoma, petiole and gaster finely or distinctly sculptured,
opaque; pilosity and pubescence abundant over most body surfaces,
mostly obscuring underlying sculpturation (e.g. Figs 25, 38) (pubescens-
complex: ate Sar E Se eS ie a ee eee eee 7
Eyes strongly posteriorly truncate or protracted (e.g. Figs 25, 59) ........... 8
Eyes normal or only weakly posteriorly truncate (e.g. Figs 44, 51) ....... 12
Node of petiole strongly transverse, distinctly wider than high (Figs 20,
PAD annoa acinar tatty ot terrasse 9
Australian Entomologist, 2013, 40 (3) 143
9 Eyes very strongly protracted posteriorly, with somewhat angular outline
in full face view (Fig. 27), posterior faces virtually flat, which is notably
evident when viewed from behind (Fig. 28) (Philippines) ........---sseeee+
E S E E EE AO, P. palawanensis sp. nov.
- Eyes posteriorly truncate, with smooth convex outline in full face view
(Fig. 19) (India, Myanmar, Thailand) ..................000 P. alatisquamis Forel
10 Antennal scapes with numerous short hairs; whole body with abundant,
closely appressed pubescence, almost hiding underlying sculpturation
(Fig. 25) (India to Borneo) .......seeeseccsssescesessessessenserees P. pubescens Mayr
- Antennal scapes with only occasional hairs present; body pubescence
relatively sparse, not completely hiding underlying sculpturation (Figs 59,
O A A E ecto ees Porat 11
Bases of antennal scapes distinctly broadened (Figs 57, 58); eyes only
moderately truncate (Figs 57, 58, 61) (Thailand) .... P. watanasiti sp. nov.
- Bases of antennal scapes not broadened (Fig. 55); eyes strongly truncate
(Bigs}55459)iGava)iesssscsticssntr P. kebunraya sp. nov.
12 Pronotal spines relatively long, more than 1.5x as long as width at their
bases; petiole with dorsolateral spines moderately long, distinctly longer
than short and stubby lateral teeth (Figs 35, 50) ....c.ccsesessesscecessseeeeeeeres 13
- Pronotal spines distinctly shorter, only about as long as width at their
bases; petiole with dorsolateral spines relatively short, about same length
as rather prominent lateral teeth (Figs 41, 43) .....cccssessssccsseceseeeeseeeeeees 16
13 Dorsum of petiole with distinct intercalary tooth (Figs 35, 50); body with
rather diluted, pale golden, appressed pubescence distributed over most
CE E EE rro D 14
1
—
- Dorsum of petiole without intercalary tooth (Figs 33, 51); body with
rather abundant, silvery grey, appressed pubescence that almost
completely hides underlying sculpturation ......s.sssssessssesssessesesesessesesereeses 15
14 Eyes distinctly convex (Fig. 53) (Java) ...s..ssssssssssssssessssesees P. selecta Forel
- Eyes rather flat (Fig. 38) (Japan, China, Vietnam) ........ P. latona Wheeler
15 Antennal scapes with numerous short hairs along superior edge
(Sulawesi, Sunda'Strait).......s.esseeeressoeriseseeseotesersesesees P. numeria Fr. Smith
- Antennal scapes without hairs (Philippines) ................ P. diana Wheeler
16 Dorsal margin of petiole strongly raised and bluntly angular medially
(Fig. 43); dorsum of mesosoma relatively slender, only moderately
convex in lateral view (Figs 46, 47) (Philippines) ........... P. starri sp. nov.
- Dorsal margin of petiole only weakly raised with distinct intercalary tooth
(Fig. 41); dorsum of mesosoma relatively broad, distinctly convex in
lateral view (Figs 44, 45) (Borneo, Sumatra) .............00+ P. murina Emery
144 Australian Entomologist, 2013, 40 (3)
Figs 1-9. Polyrhachis aculeata-group spp: (1-3) head in full face view; (4, 6, 8) dorsal
view; (5, 7, 9) lateral view. (1, 4-5) P. aculeata Mayr; (2, 6-7) P. cybele Wheeler; (3,
8-9) P. dimoculata sp. nov. (holotype) (not to scale).
Australian Entomologist, 2013, 40 (3) 145
Polyrhachis aculeata-complex
Polyrhachis aculeata Mayr, 1879
(Figs 1, 4-5)
Polyrhachis aculeata Mayr, 1879: 657. Holotype worker. Type locality: INDIA (as
‘Ostindien’) (Schmidt-Gébel), NHMW (examined).
Polyrhachis aculeata Mayr; Emery, 1887: 235. Description of queen.
Polyrhachis aculeata Mayr; Forel, 1893: 28. Description of male.
Hemioptica aculeata Mayr; Bingham, 1903: 382. Combination in Hemioptica Roger.
Polyrhachis (Hemioptica) aculeata Mayr; Wheeler, 1919: 126. Combination in P.
(Hemioptica).
Polyrhachis (Myrma) aculeata Mayr; Emery, 1925: 205. Combination in P. (Myrma).
Polyrhachis (Myrma) aculeata Mayr; Dorow & Kohout, 1995: 94.
Additional material examined. INDIA: Travancore (H. Ferguson) (w); Kerala,
Kondotty, 23.viii.1962 (A.B. Soans) (w).
Worker. Dimensions (holotype cited first): TL c. (gaster missing), 6.40-6.80;
HL 1.59, 1.59-1.75; HW 1.43, 1.36-1.43; CI 84, 81-84; SL 1.93, 1.93-2.03;
SI 144, 142-149; PW 1.30, 1.12-1.30; MTL 2.06, 2.06-2.21 (1+2 measured).
Remarks. I have examined two worker specimens of P. aculeata from the
Mayr collection in Vienna (NHMW), neither labelled as the type. However,
in the original description Mayr noted ‘Ich besitze nur ein Exemplar aus
Ostindien, welches ich Herrn Professor Schmidt-Gébel verdanke.’ I have
therefore considered the specimen bearing a tag inscribed ‘Ind. or. Schm.’ to
be the holotype of P. aculeata and labelled it accordingly. The specimen
bears two additional, original labels as follows: ‘P. aculeata det. G. Mayr’
and ‘Collect. G. Mayr’. The specimen is pinned and missing the gaster, but
otherwise is in relatively sound condition.
Polyrhachis cybele Wheeler, 1919
(Figs 2, 6-7)
Polyrhachis (Hemioptica) aculeata ssp. cybele Wheeler, 1919: 126. Syntype workers.
Type locality: BORNEO, SARAWAK, Kuching (J. Hewitt), MCZC (Type 9076)
(examined).
Polyrhachis (Myrma) aculeata subsp. cybele Wheeler; Emery, 1925: 205.
Combination in P. (Myrma).
Polyrhachis cybele Wheeler; Kohout, 2008: 271, fig. 3A-B. Raised to species.
Additional material examined. BORNEO, SABAH: W coast Residency, Ranau,
500m, 22-25.i.1959 (T.C. Maa) (w); Crocker Ra., Mahua Falls, 05°47°N, 116°24’E, c.
950 m, rf., 4.xi.2000 (R.J. Kohout acc. 2000.198) (w, 2); SARAWAK: Sadong,
Kampong Tapuh, 300-450 m, 4-9.vii.1958 (T.C. Maa) (w). BRUNEI: Belait Distr., c.
1-2 km SE of Melilas Longhouse, rf., 16.vii.1994 (R.J. Kohout et al. acc.94.121) (w).
INDONESIA, SUMATRA: Kepahiang, xi-xii.1925 (H.C. Kellers, Navy Dept. Eclipse
Exped.) (w); Pematang, Siantar, vii-viii. (?year) (J. Mathews) (w); JAVA: Bogor,
Kebun Raya, 06°35’S, 106°47’E, 290 m, 7-12.ix.1999, S.K.A. Robson #823 (w);
146 Australian Entomologist, 2013, 40 (3>
SULAWESI (as Celebes): Kandari, iii.1874 (O. Beccari) (w); SULAWESI TENGAH:
Lore-Lindu NP, 01°15’S, 120°20’E, nr Dongi-Dongi, c. 1010m, 4-9.xii.1985 (Malaise
trap 2) (C.van Achterberg) (w); SULAWESI SELATAN: Sampulage nr. Mangkrana,
02°20’S, 120°48’E, 800 m, 19.x.1999 (K. Ogata & K. Masaoka) (w). PHILIPPINES,
NEGROS I.: Dumaguete (J.W. Chapman) (w); MINDANAO: Davao (A. Reyes) (w).
Worker. Dimensions (syntype cited first): TL c. 7.00, 5.95-7.96; HL 1.68,
1.53-1.87; HW 1.43, 1.28-1.56; CI 85, 75-85; SL 2.09, 1.81-2.28; SI 146,
133-150; PW 1.22, 1.06-1.50; MTL 2.15, 1.96-2.46 (1+25 measured).
Queen (not previously described). Dimensions: TL c. 8.26; HL 1.84; HW
1.59; CI 86; SL 2.18; SI 137; PW 1.72; MTL 2.34 (1 measured).
Queen larger than worker with usual characters identifying full sexuality, including
three ocelli, complete thoracic structure and wings. Pronotal spines distinctly shorter,
only marginally longer than their basal width, anteriorly directed. Mesoscutum
somewhat wider than long; lateral margins converging anteriorly into smoothly
rounded anterior margin; median line distinct; parapsides only weakly raised
posteriorly; mesoscutum in profile with widely rounded anterior face and almost flat
dorsum posteriorly. Mesoscutellum moderately convex, only marginally elevated
above dorsal plane of mesosoma. Propodeal dorsum convex in outline with lateral
margins terminating in narrowly rounded, medially continuous ridges that form rather
thin, transverse, medially bowed line dividing propodeal dorsum from declivity.
Petiole biconvex in profile, dorsolateral spines reduced to rather blunt, wide-based
teeth, only marginally longer than acute lateral teeth; dorsal margin very shallowly,
medially notched. Rather smooth and highly polished dorsal body surfaces, pilosity,
pubescence and colour, very similar to worker.
Remarks. Polyrhachis cybele is a relatively uncommon species distributed
from Borneo, Sumatra and Java to Sulawesi and the Philippines. Specimens
from Sumatra are rather similar to those of the Bornean population, but those
from Sulawesi and Java differ in a number of characters. Sulawesi specimens
are characterised by a distinctly broader pronotal dorsum and shorter antennal
scapes (SI 133-140 versus 144-150 in other populations). In contrast, the
single available series of specimens from Java (Kebun Raya, Bogor), differ
markedly from other populations by their distinctly more slender body (PW
1.06-1.18 versus 1.22-1.50 in specimens from Borneo, Sumatra and
Sulawesi). The Bogor specimens also have the body hairs distinctly less
abundant and virtually absent from the antennal scapes, vertex of the head,
dorsum of the mesosoma and most of the gastral dorsum, except the apex.
However, specimens from across the entire distribution are closely similar in
their general appearance and I believe all the examined populations are
conspecific.
Polyrhachis cybele is a very characteristic species discussed in detail,
together with the closely similar P. aculeata Mayr, P. gibbosa Forel and P.
hemiopticoides Mukerjee, by Kohout (2008: 258, 271). The distinguishing
characters separating P. cybele from the closely similar new species P.
dimoculata are given below in the remarks section of that species.
Australian Entomologist, 2013, 40 (3) 147
Polyrhachis dimoculata sp. nov.
(Figs 3, 8-9)
Types. Holotype worker, BORNEO, SABAH: Danum Valley Cons. Area, Segama
River Trail, 04°57’N, 117°48’E, 11.xi.2000, rf., R.J. Kohout acc.2000.222 (worker).
Paratype worker, SABAH: Poring Hot Springs, iv.1993, A. Floren (Polyrhachis #14)
(worker). Type deposition: Holotype in ITBC, paratype in QMBA.
Description. Worker. Dimensions (holotype cited first): TL c. 7.66, 7.41; HL
1.90, 1.84; HW 1.53, 1.43; CI 80, 78; SL 2.43, 2.37; SI 159, 166; PW 1.37,
1.34; MTL 2.62, 2.50 (2 measured).
Mandibles with 5 teeth. Anterior clypeal margin arcuate, narrowly medially truncate.
Clypeus with blunt median carina, virtually straight in profile, posteriorly rounding
into weakly impressed basal margin. Frontal triangle distinct. Frontal carinae sinuate
with rather strongly raised margins; central area narrow with distinct median furrow.
Sides of head in front of eyes converging towards mandibular bases in evenly convex
line; behind eyes sides converging into smoothly rounded occipital corners. Eyes
convex, strongly posteriorly truncate, in full face view clearly breaking lateral
cephalic outline. Ocelli lacking; positions of lateral ocelli indicated by weakly raised
cephalic sculpturation. Dorsum of mesosoma evenly convex in profile; pronotal
humeri armed with rather long, acute spines; dorsum of each spine with distinct,
rather acute, longitudinal carina running from base towards and almost reaching tip;
outer edges of spines acute, weakly notched basally and continuous with lateral
margins of pronotal dorsum. Promesonotal suture distinctly impressed. Mesonotal
dorsum with lateral margins narrowly rounded and weakly raised anteriorly;
metanotal groove impressed laterally, rather flat medially. Propodeal dorsum with
lateral margins distinctly converging posteriorly and terminating in narrowly rounded,
weakly raised ridges that are continued medially and merge into a dorsally bowed,
somewhat medially notched carina dividing propodeal dorsum from shallowly
concave declivity; secondary carinae extending from propodeal margins towards
propodeal spiracles dividing declivity from sides of propodeum. Petiole biconvex in
profile, armed with a pair of dorsolaterally and posteriorly directed, acute spines,
situated on dorsolateral angles close to posterior face of petiole; dorsal margin of
petiole with intercalary tooth visible in lateral view; distinctly shorter, rather blunt
tooth situated laterally below base of each spine. Anterior face of first gastral segment
concave to accommodate posterior face of petiole, anterodorsal margin distinctly
lower than full height of petiolar node.
Mandibles finely, longitudinally striate with numerous piliferous pits. Body surfaces
very finely sculptured, reticulate-punctate, rather semi-polished to opaque, sculpture
on pronotal dorsum, notably along lateral margins, somewhat longitudinally directed;
bases of pronotal spines more distinctly longitudinally striate. Propodeal declivity,
tips of pronotal and petiolar spines and gaster, smooth and polished.
Mandibles along masticatory borders with a few semierect, relatively short, golden
hairs. Anterior clypeal margin with a few moderately long, anteriorly directed, golden
setae medially. A few pairs of moderately long, erect, golden hairs along basal margin
of clypeus and along frontal carinae. Hairs totally absent from vertex of head,
antennal scapes, dorsum of mesosoma, petiole and dorsum of gaster. Only a few,
148 Australian Entomologist, 2013, 40 (3)
moderately long hairs on anterior and posterior faces of fore coxae. Gaster with
numerous, posteriorly directed hairs around apex and on venter.
Colour. Black throughout, with only extreme tip of apical funicular segment
reddish brown.
Sexuals and immature stages unknown.
Etymology. Derived from the combination of the Latin words dimidiatus,
meaning halved, and oculus, meaning eye, in reference to the rather peculiar
truncate eyes.
Remarks. Polyrhachis dimoculata is similar to other species of the aculeata-
complex; however, it is easily recognised by its very fine body sculpturation
that produces a very characteristic, somewhat semi-polished appearance to
the head, mesosoma and petiole (Figs 3, 8-9), which contrasts with the highly
polished gaster. Also, unlike other species of the complex, P. dimoculata has
virtually no pubescence and pilosity on all the dorsal body surfaces.
Polyrhachis dimoculata appears to be a rather rare species and, in spite of
extensive collecting undertaken in recent years at Danum Valley and
Kinabalu Park, the holotype and paratype remain the only specimens known.
The holotype was collected foraging on low vegetation along the Segama
River walking track and the paratype by fogging the rainforest canopy at
Poring Hot Springs.
Polyrhachis gibbosa Forel, 1908
(Figs 10, 13-14)
Polyrhachis aculeata var. gibbosa Forel, 1908: 9. Syntype workers. Type locality:
SRI LANKA (as ‘Ceylan’), Puwakpitiya, 1906-7 (E. Bugnion), MHNG
(examined).
Polyrhachis aculeata var. gibbosa Forel; Forel, 1913: 139 (footnote). Description of
queen.
Polyrhachis (Myrma) aculeata var. gibbosa Forel; Emery, 1925: 205. Combination in
P. (Myrma).
Polyrhachis gibbosa Forel; Kohout, 2008: 258. Raised to species.
Additional material examined. SRI LANKA: Sinharaja For. Reserve, 06°20'-06°26'N,
80°23'-80°33'E, 173-657 m, 2006-2007 (Nihara R. Gunawardene) (w).
Worker. Dimensions (syntypes): TL c. 5.85-6.35; HL 1.59-1.62; HW 1.31-
1.37; CI 82-84; SL 1.87-1.93; SI 141-143; PW 1.18-1.25; MTL 1.87-1.96 (2
measured).
Remarks. Polyrhachis gibbosa differs from the other species of the aculeata-
complex by the dorsal body surfaces being only partly polished and the
mesonotum and propodeum being more distinctly sculptured. The mesosoma
also appears somewhat shorter and relatively broad, with the pronotal spines
only about as long as the width at their bases and the mesosomal dorsum is
Australian Entomologist, 2013, 40 (3) 149
Figs 10-18. Polyrhachis aculeata-group spp: (10-12) head in full face view; (13, 15,
17) dorsal view; (14, 16, 18) lateral view. (10, 13-14) P. gibbosa Forel; (11, 15-16) P.
hemiopticoides Mukerjee; (12, 17-18) P. noonananti sp. nov. (holotype) (not to scale).
150 Australian Entomologist, 2013, 40 (3)
highly convex in lateral view. The body is entirely black with rather
abundant, silvery, appressed pubescence, notably on the pronotal collar and
along the dorsolateral margins and sides of the mesosoma.
Polyrhachis hemiopticoides Mukerjee, 1930
(Figs 11, 15-16)
Polyrhachis (Myrma) hemiopticoides Mukerjee, 1930: 161, fig. 5. Syntype workers.
Type locality: INDIA, Calcutta (C.A. Paiva), IMCI.
Additional material examined. INDIA: Ayur, North Salem, F.R.I. Sandal Insect
Survey, 11.ix.30, Plot 21 (w). LAOS: Borikhane Prov., Pak Kading, 100 m,
22.iv.1965, in bamboo (J.L. Gressitt) (w). SOUTHERN THAILAND: Surat Thani
Prov., Klong Sang W’life Sanctuary, Chiew Larn reservoir, iii-v.1994, lowland rf.,
fogging (L. Lebel) (w).
Worker. Dimensions: TL c. 6.55-7.31; HL 1.68-1.81; HW 1.40-1.56; CI 83-
86; SL 2.03-2.06; SI 132-145; PW 1.18-1.28; MTL 2.12-2.21 (3 measured).
Sexuals and immature stages unknown.
Remarks. I did not have the opportunity to examine the syntypes of P.
hemiopticoides lodged in the Indian Museum in Calcutta. In lieu of the
original types, I have examined, by the courtesy of Dr Himender Bharti of
Punjabi University, Patiala, India (PUPI), a specimen from Ayur identified by
the original author (see Mukerjee 1934: 11-12), with the collection data listed
above.
Polyrhachis hemiopticoides is a rather elegant species closely resembling
both P. aculeata and P. cybele. It shares with the former a slender body with
rather long and slender pronotal and petiolar spines and markedly light,
reddish brown appendages. In contrast, P. cybele is more robust with thicker
and shorter pronotal and petiolar spines and has generally very dark
appendages. The petiole in P. hemiopticoides and P. cybele is broadly
transverse, with a distinctly arcuate dorsal edge and dorsolateral spines
arising obliquely from close to the posterior face of the petiole. As a result,
the dorsal edge of the petiole is clearly visible in lateral view (Fig. 7). In
comparison, the dorsal edge of the petiole in P. aculeata is less prominent
and, in lateral view, is hidden by the more upright dorsolateral spines (Fig. 5).
Polyrhachis aculeata also differs by the presence of numerous, relatively
long, erect or semierect hairs that, in both the other species, are distinctly less
abundant and virtually confined to the head and gaster (see also Kohout
2008: 258, 271).
Polyrhachis noonananti sp. nov.
(Figs 12, 17-18)
Type. Holotype worker, SOUTHERN THAILAND: Surat Thani Prov., Klong Sang
WS, Chiew Larn reservoir, iii-v.1994, lowland rf., fogging, L. Lebel (worker). Type
distribution: Holotype worker in QMBA (QMT 183498).
Australian Entomologist, 2013, 40 (3) 151
Description. Worker. Dimensions (holotype): TL c. 5.74; HL 1.43; HW 1.22;
CI 85; SL 1.87; SI 153; PW 0.97; MTL 1.93.
Anterior clypeal margin arcuate, widely medially truncate. Clypeus with median
carina blunt anteriorly, weakly raised towards almost flat basal margin; straight in
profile. Frontal triangle distinct; short median carina running for short distance from
triangle towards central area. Frontal carinae closely approximate and rather flat
anteriorly, distinctly raised and sinuate from midlength with central area relatively
wide posteriorly. Sides of head in front of eyes converging towards mandibular bases
in weakly convex line; behind eyes sides widely rounding into occipital margin. Eyes
convex, only moderately posteriorly truncate. Ocelli lacking. Dorsum of mesosoma
convex longitudinally and transversely, with rather poorly developed lateral margins
and in profile with a very shallow depression indicating position of metanotal groove.
Pronotal spines relatively short, about 1.5x longer than their basal width; lateral
margins of pronotal dorsum subparallel, gently rounding into weakly impressed
promesonotal suture. Mesonotal dorsum with lateral margins flat, weakly converging
posteriorly; metanotal groove only weakly impressed dorsally. Propodeal dorsum with
lateral margins converging posteriorly and terminating in narrowly rounded, weakly
raised ridges that continue medially and merge into a dorsally bowed carina dividing
propodeal dorsum from shallowly concave declivity; secondary carinae extending
from propodeal margins towards propodeal spiracles, dividing declivity from sides of
propodeum. Petiole biconvex in profile, armed with a pair of very short, acute spines
situated on dorsolateral angles of petiole; rather blunt, secondary tooth situated
laterally at base of each spine. Anterior face of first gastral segment in unique
holotype is damaged beyond recognition of its shape or height (Figs 17, 18).
Mandibles finely, longitudinally striate with numerous piliferous pits. All dorsal body
surfaces very smooth and highly polished. Sides of mesosoma very finely wrinkled.
Mandibles along masticatory borders and near bases with a few semierect, relatively
short, golden hairs. Anterior clypeal margin with a few moderately long, anteriorly
directed, golden setae medially. A few pairs of moderately long, erect, golden hairs on
clypeus and along frontal carinae. Hairs totally absent from dorsum of mesosoma,
petiole, dorsum of first gastral segment, femora and tibiae. Only a few short hairs
along superior edge of antennal scapes; longer hairs on anterior and posterior faces of
fore coxae. Gaster with numerous, posteriorly directed hairs around apex and on
gastral venter.
Colour. Body black; mandibular teeth, antennae, tarsi and venter of gaster
very dark reddish brown. Trochanters, femora and tibiae, except joints,
distinctly light reddish brown.
Sexuals and immature stages unknown.
Etymology. Named after Dr Nawee Noon-anant of Prince of Songkla
University, Hat Yai, Thailand, in appreciation of his support during my visit
to southern Thailand and for making the Polyrhachis material in his
collection available for examination.
Remarks. Polyrhachis noonannanti is very similar to other species of the
aculeata-complex (e.g. P. cybele and P. hemiopticoides); however, it is easily
152 Australian Entomologist, 2013, 40 (3)
separable by the unique structure of the front of the head (i.e. a short median
carina running from the frontal triangle to the central area between the
anteriorly flat frontal carinae), the presence of a shallow posterior depression
in the profile of the mesosoma and the greatly reduced petiolar spines.
Polyrhachis pubescens-complex
Polyrhachis alatisquamis Forel, 1893, stat. nov.
(Figs 19-20, 23-24)
Polyrhachis pubescens var. alatisquamis Forel, 1893: 17 (diagnosis in key), 28.
Holotype worker. Type locality: MYANMAR (as Birmanie), Ataran Valley,
iii.1891 (C.T. Bingham), MHNG (examined).
Polyrhachis (Myrma) pubescens var. alatisquamis Forel; Emery, 1925: 205.
Combination in P. (Myrma).
Additional material examined. THAILAND (as Siam): (no further data) (w). INDIA,
ANDAMAN IS: 30.v.1905 (G. Rogers, BMNH 1006-204) (w).
Forel (1893: 17) only gave a very short diagnosis of P. pubescens var.
alatisquamis by providing characters distinguishing it from P. pubescens in a
key, mainly alluding to the form of the petiole. Consequently, I present a full
redesciption of the species below.
Redescription. Worker. Dimensions (holotype cited first): TL c. 5.85, 5.49-
6.00; HL 1.43, 1.43-1.50; HW 1.12, 1.06-1.18; CI 78, 74-79; SL 1.84, 1.72-
1.96; SI 164, 162-166; PW 1.00, 0.97-1.06; MTL 1.78, 1.72-1.84 (1+2
measured).
Mandible with 5 teeth slightly reducing in length towards mandibular base. Anterior
clypeal margin arcuate, narrowly medially truncate. Clypeus with distinct median
carina; virtually straight in profile with moderately impressed basal margin. Frontal
triangle poorly indicated. Frontal carinae sinuate with margins moderately raised:
central area with distinct frontal furrow. Sides of head in front of eyes weakly convex
towards mandibular bases; behind eyes sides rounding into relatively narrow occipital
margin. Eyes convex, distinctly protracted posteriorly; clearly exceeding lateral
cephalic outline in full face view. Ocelli lacking. Dorsum of mesosoma evenly convex
in profile; pronotal dorsum armed with very slender and acute spines, about 3x as long
as their basal width; spines anterolaterally directed and curving slightly downwards;
lateral edges of spines acute and continuous with subparallel margins of pronotum.
Promesonotal suture distinctly impressed laterally, virtually flat medially; mesonotal
dorsum strongly transverse, about 2.5x as wide as long with lateral margins narrowly
rounded and raised anteriorly, widely rounded posteriorly into medially indistinct
metanotal groove. Propodeal dorsum with lateral margins converging posteriorly and
terminating in distinct, dorsally raised ridges; inner borders of ridges continued
medially and merging into transverse carina dividing dorsum from weakly concave
declivity; secondary carinae extending from propodeal margins towards propodeal
spiracles, dividing declivity from sides of propodeum. Petiole biconvex in profile;
dorsum strongly transverse with weakly convex dorsal margin armed with pair of
dorsolaterally and posteriorly directed spines situated on dorsolateral angles of
Australian Entomologist, 2013, 40 (3) 153
petiole; shorter, rather flat, secondary spine situated laterally at base of each spine.
Anterior face of first gastral segment concave to accommodate posterior face of
petiole; anterior margin rather narrowly rounding onto dorsum.
Mandibles distinctly, longitudinally striate, semipolished. Clypeus reticulate-punctate
with rest of head and dorsum of mesosoma distinctly, rather regularly, longitudinally
striate, opaque. Sides of mesosoma wrinkled; petiole finely reticulate. Tips of pronotal
and petiolar spines smooth, highly polished. Gaster rather distinctly reticulate-
punctate, opaque.
Figs 19-26. Polyrhachis aculeata-group spp: (19, 21) head in full face view; (20, 22)
petiole in frontal view; (23, 25) dorsal view; (24, 26) lateral view. (19-20, 23-24) P.
alatisquamis Forel (holotype); (21-22, 25-26) P. pubescens Mayr (not to scale).
Mandibular masticatory borders and outer margins with numerous, suberect, golden
hairs. Anterior clypeal margin medially with a few anteriorly directed, golden setae
and fringe of very short setae laterally. Numerous relatively long, erect or suberect,
pale golden hairs on clypeus, along frontal carinae, vertex and sides of head;
moderately long, suberect hairs lining superior edge of antennal scapes. Somewhat
less abundant and shorter hairs on dorsum of mesosoma and petiole; hairs distinctly
154 Australian Entomologist, 2013, 40 (3)
more abundant on gaster, with notably longer hairs towards gastral apex and on
venter. Closely appressed, relatively long, white or greyish pubescence abundant over
most body surfaces and almost completely hiding underlying sculpturation;
pubescence less abundant on antennal scapes and legs and completely absent from
mandibles and tips of spines.
Colour. Black; antennae, legs and gastral venter and apex dark to very dark
reddish brown; mandibular masticatory borders and teeth a shade lighter.
Sexuals and immature stages unknown.
Remarks. Closely similar to P. pubescens but differing by its generally
smaller size, more slender body, distinctly less convex eyes and more
strongly transverse dorsum of the petiole.
Polyrhachis pubescens Mayr, 1879
(Figs 21-22, 25-26)
Polyrhachis pubescens Mayr, 1879: 657. Neotype worker (by present designation).
Type locality: WEST MALAYSIA: Selangor, Ulu Gombak, 15.xii.2004
(Fuminori Ito, FI 04-49), QMBA (examined).
Hemioptica (Hemioptica) pubescens Mayr; Bingham, 1903: 381. Combination in
Hemioptica Roger.
Polyrhachis (Myrma) pubescens Mayr; Emery, 1925: 205. Combination in P.
(Myrma).
Polyrhachis (Myrma) pubescens Mayr; Dorow & Kohout, 1995: 94.
Neotype designation. Polyrhachis pubescens was originally described from a
single worker collected in ‘Ostindien’. The specimen was presented to Mayr
by Prof. Schmidt-Gébel and, like that of P. aculeata, the holotype should be
lodged in the Mayr collection in Vienna (NHMW). However, in spite of an
extensive search, the specimen cannot be located there or in any other
collection examined and is considered lost. To establish the nomenclatural
stability of the species, I here designate, in accordance with Article 75.3.5 of
the /nternational Code of Zoological Nomenclature (Fourth Edition: 1999), a
worker specimen as the neotype of Polyrhachis pubescens Mayr. The
specimen was selected from a nest series that also includes queens and a
male, with part of the colony donated to QMBA, where the neotype has also
been deposited. The specimen bears the following label: ‘FI 04-49, Ulu
Gombak, W-Malaysia, 15.xii.2004, ITO Fuminori’, plus an additional red
label: ‘NEOTYPE, QMT 183497, Polyrhachis pubescens Mayr, 1879,
designated by R.J. Kohout, 2013’.
Additional material examined. SOUTHERN THAILAND: Yala Prov., Betong,
Piyamit Village, 750-950 m, 6.1.2006, rf. edge (N. Naw) (w). WEST MALAYSIA:
Selangor, Gombak Research Centre, i-ii.1989 (M. Edmunds) (w); Ulu Gombak,
15.xii.2004 (Fuminori Ito, FI 04-49) (w, 2, ¢). BORNEO, SABAH: Kinabalu Park,
Poring, 06°3’N, 116°42’E, 500 m, 19.ix.2006, fogging (A. Floren) (w).
Australian Entomologist, 2013, 40 (3) 155
Worker. Dimensions: TL c. 6.05-7.31; HL 1.59-1.72; HW 1.22-1.34; CI 75-
79; SL 2.00-2.18; SI 156-169; PW 1.18-1.25; MTL 1.96-2.09 (11 measured).
Queen (not previously described). Dimensions: TL c. 7.61-7.71; HL 1.72;
HW 1.34-1.37; CI 78-79; SL 2.09; SI 152-156; PW 1.56-1.59; MTL 2.03-
2.09 (2 measured).
Queen larger than worker with usual characters identifying full sexuality, including
three ocelli, complete thoracic structure and wings. Pronotal spines shorter.
Mesoscutum wider than long; lateral margins converging anteriorly into moderately
rounded anterior margin; median line distinct, bifurcate anteriorly; parapsides flat,
only weakly raised posteriorly; mesoscutum in profile with relatively low anterior
face and posteriorly flat dorsum. Mesoscutellum only weakly convex, not elevated
above dorsal plane of mesosoma. Propodeal dorsum weakly convex in outline, with
lateral margins somewhat angular at midlength and terminating in short ridges that
extend medially, forming transverse carina dividing propodeal dorsum from concave
declivity. Petiole with dorsal margin convex, dorsolaterally armed on each side with
two teeth of virtually equal length. Sculpturation, pilosity, pubescence and colour very
similar to worker.
Males and immature stages in private collection of Fuminori Ito.
Remarks. Polyrhachis pubescens is recorded from India, Myanmar, Thailand
and West Malaysia. Only very recently it has been identified from Borneo
(Sabah); it was not included by Wheeler (1919) or Kohout (in Pfeiffer et al.
2011) in their lists of Bornean ants. The specimens from Kinabalu Park in
Sabah are very similar to material from continental Malaysia and differ
mainly in their marginally larger size (HL >1.68 in Bornean specimens
versus <1.68 in continental specimens). The longitudinal body striation is
also more distinct, due to the somewhat less abundant silvery pubescence
which, in continental specimens, is richer and partly obscures the underlying
sculpturation.
Polyrhachis palawanensis sp. nov.
(Figs 27-31)
Type. Holotype worker, PHILIPPINES, PALAWAN: Mantalingajan Ra., Pingisan,
620 m, H. Holtmann (worker). Type deposition: Holotype in MCZC.
Description. Worker. Dimensions: TL c. 6.60; HL 1.62; HW 1.31; CI 81; SL
2.06; SI 157; PW 1.28; MTL 2.00 (1 measured).
Mandibles with 5 teeth. Anterior clypeal margin arcuate, distinctly truncate medially,
truncate portion delimited laterally by blunt angles. Clypeus with poorly indicated
median carina; virtually straight in profile, posteriorly rounding into moderately
impressed basal margin. Frontal triangle poorly indicated. Frontal carinae sinuate,
margins only moderately raised; central area flat with rather short frontal furrow.
Sides of head in front of eyes convex towards mandibular bases; behind eyes sides
strongly converging towards rather narrow occipital margin. Eyes very prominent,
Virtually flat, strongly projecting laterally, resembling blinkers, outline somewhat
angular in full face view (Fig. 27); flatness of eyes notably evident when viewed from
156 Australian Entomologist, 2013, 40 (3)
behind (Fig. 28). Ocelli lacking. Pronotal dorsum armed with relatively long spines,
about 2x as long as basal width; pronotal margins subparallel, rounding posteriorly
into promesonotal suture that is distinctly impressed laterally and rather flat medially.
Mesonotal lateral margins narrowly rounded and raised anteriorly, posteriorly
rounding into laterally impressed, medially indistinct, metanotal groove. Propodeal
dorsum with lateral margins distinctly converging posteriorly and terminating in
narrowly rounded, dorsally raised ridges that are continued medially and form
transverse, dorsally bowed carina separating propodeal dorsum from virtually vertical,
concave declivity. Secondary carinae extending from propodeal margins towards
propodeal spiracles, dividing declivity from sides of propodeum. Petiole biconvex in
profile; dorsum strongly transverse with weakly convex dorsal margin armed with
pair of dorsolaterally and posteriorly directed spines situated on dorsolateral angles of
petiole; shorter, rather flat, secondary spine situated laterally at base of each spine
(Fig. 29). Anterior face of first gastral segment concave to accommodate posterior
face of petiole; anterior margin only narrowly rounding onto dorsum.
Mandibles distinctly, longitudinally striate with piliferous pits. Clypeus reticulate-
punctate with rest of head and dorsum of mesosoma, including spines, distinctly,
rather regularly, longitudinally striate, opaque. Sides of mesosoma wrinkled; petiole
finely reticulate. Tips of pronotal and petiolar spines smooth, polished. Gaster
distinctly, rather closely reticulate-punctate, opaque.
Mandibular masticatory borders and outer margins with numerous, suberect, golden
hairs. Anterior clypeal margin medially with a few anteriorly directed golden setae
and few shorter setae fringing margin laterally. Numerous relatively long, erect or
suberect, mostly silvery or whitish hairs on clypeus, along frontal carinae, vertex and
sides of head; moderately long, suberect hairs lining superior edge of antennal scapes
with only a few distinctly shorter hairs along inferior edge. A few shorter, silvery
hairs on sides of pronotum and fore coxae; more abundant, somewhat longer, pale
golden hairs on legs. Hairs virtually absent from dorsum of mesosoma and petiole.
Several moderately long, pale golden hairs on dorsum of gaster, distinctly longer and
more abundant hairs on gastral venter and around apex. Closely appressed, relatively
long, white or greyish pubescence abundant over most body surfaces and almost
completely hiding underlying sculpturation; pubescence somewhat less abundant on
antennal scapes and legs and completely absent from mandibles and tips of spines.
Colour. Black; mandibular masticatory borders lined with reddish brown.
Antennae, legs and gastral apex dark to medium reddish brown.
Sexuals and immature stages unknown.
Etymology. Named after the type locality, Palawan Island in the Philippines.
Remarks. Polyrhachis palawanensis closely resembles P. pubescens and P.
alatisquamis. All have short to medium length, semierect to erect, bristle-like
hairs and abundant, relatively long, silvery, appressed pubescence.
Polyrhachis palawanensis and P. alatisquamis both have a transversely broad
petiole distinguishing them from P. pubescens (Fig. 29). In addition, P.
palawanensis has unusually flat, posteriorly protracted eyes (Figs 27, 28),
which distinguish it from both of the above species.
Australian Entomologist, 2013, 40 (3) 157
Figs 27-31. Polyrhachis aculeata-group spp: (27) head in full face view; (28) oblique
view of head from behind; (29) petiole in frontal view; (30); dorsal view; (31) lateral
view. (27-31) P. palawanensis sp. nov. (holotype). (not to scale).
Polyrhachis diana Wheeler, 1909
(Figs 32-33, 36-37)
Polyrhachis diana Wheeler, 1909: 343. Syntype workers. Type locality:
PHILIPPINES, MINDANAO, Butuan, 19.xii.1907 (H.M. Smith), AMNH, MCZC
(Co-type 22958) (examined).
Polyrhachis (Myrma) diana Wheeler; Emery, 1925: 201. Combination in P. (Myrma).
Additional material examined. PHILIPPINES, LUZON: Manila (as Manille) (Baer)
(w); Manila (no further data); Los Baños (Baker) (2); LUZON: 29.ix.1945 (H.E.
Milliron) (w); NEGROS ORIENTAL: Dumaguete (J.W. Chapman) (9).
Worker. Dimensions (syntypes cited first): TL c. 6.35-7.16, 6.35-7.16; HL
1.65-1.72, 1.65-1.72; HW 1.25-1.31, 1.25-1.34; CI 76-77, 76-80; SL 2.06-
2.18, 2.06-2.18; SI 161-167, 160-167; PW 1.28-1.31, 1.28-1.31; MTL 2.03-
2.12, 2.03-2.12 (5+2 measured).
Queen (two queen specimens in MCZC collection).
Males and immature stages unknown.
Remarks. When describing P. diana, Wheeler (1909) noted it was closely
related to P. latona, described from Taiwan in the same paper. He listed the
more abundant and silvery pubescence, shorter thorax and the different shape
of the petiole and its associated spines as characters distinguishing P. diana
158 Australian Entomologist, 2013, 40 (3)
from P. latona. In addition to these characters, P. diana also differs from P.
latona by its more distinct sculpturation of the head (Figs 32, 36) and
mesosoma, more convex eyes, notably when viewed from behind, and
transversely broader petiolar node, which lacks the intercalary tooth (Fig. 33)
that is rather prominent in P. /atona (Fig. 35). Polyrhachis diana is also
similar to P. murina Emery, a species originally described from Borneo and
the Philippines. Polyrhachis murina differs by its distinctly shorter pronotal
spines (Fig. 44), much finer sculpturation of the mesosomal dorsum and by
having the lateral petiolar teeth extended into short spines (Fig. 41).
Polyrhachis latona Wheeler, 1909
(Figs 33-34, 38-39)
Polyrhachis latona Wheeler, 1909: 337. Syntype workers. Type locality: TAIWAN
(as Formosa), Takao (H. Sauter), AMNH, MCZC (Type 21662) (examined).
Polyrhachis (Myrma) latona Wheeler; Emery, 1925: 201. Combination in P.
(Myrma).
Polyrhachis latona v. dorsorugosa Forel, 1913: 202. Syntype workers, male. Original
localities: TAIWAN (as Formosa), Kankau (Koshun) (H. Sauter); Chip-Chip (H.
Sauter), MHNG (examined).
Polyrhachis dorsorugosa Forel; Wang & Wu, 1991: 599, 601. Raised to species.
Polyrhachis dorsorugosa Forel; Wu & Wang, 1995: 167, 201. Junior synonym of P.
latona.
Additional material examined. TAIWAN: Taipei, Ankung, 8.viii.1992 (D.G. Furth)
(w); Huan Tao Chi, nr Pu Li, c. 660 m, 24.x.1960 (A.C.F. Hung) (w); ditto,
21.vi.1962 (A.C.F. Hung) (w). CHINA: Chusan Is (J.J. Walker) (w). HONG KONG,
N.T.: Tai Po Kau for., tree fern stump, 29.x.1980 (R. Winney) (w). JAPAN: Ryukyu
Is, Miyako Group, Erabu, 6.ix.1951 (F.G. Werner) (w). N. VIETNAM: Cuo Phang
Forest, 295 m, 23.viii.1981 (P. Jolivet) (w).
Worker. Dimensions (syntypes cited first): TL c. 6.25-7.16, 6.30-7.26; HL
1.62-1.72, 1.65-1.84; HW 1.22-1.31, 1.26-1.34; CI 75-76, 73-78; SL 1.96-
2.06, 2.03-2.21; SI 157-161, 156-166; PW 1.18-1.34, 1.25-1.40; MTL 1.93-
2.09, 2.00-2.25 (2+10 measured).
Queen (not previously described). Dimensions: TL c. 8.62; HL 1.90; HW
1.42; CI 75; SL 2.25; SI 158; PW 1.78; MTL 2.31 (1 measured).
Queen larger than worker with usual characters identifying full sexuality, including
three ocelli, complete thoracic structure and wings. Pronotal spines very short, about
as long as basal width. Mesoscutum only marginally wider than long; lateral margins
converging anteriorly into rather narrowly rounded anterior margin; median line
distinct; parapsides virtually flat; mesoscutum in profile with anterior face widely
rounding onto convex dorsum. Mesoscutellum weakly convex, not distinctly elevated
above dorsal plane of mesosoma. Propodeum with lateral margins in profile
somewhat angular at midlength, terminating in short ridges that are continued
medially forming distinct, dorsally bowed carina dividing propodeal dorsum from
declivity. Petiole with dorsolateral and lateral spines subequal in length; dorsal margin
Australian Entomologist, 2013, 40 (3) 159
with distinct intercalary tooth. Sculpturation, pilosity, pubescence and colour very
similar to worker.
Figs 32-39. Polyrhachis aculeata-group spp: (32, 34) head in full face view; (33, 35)
petiole in frontal view; (36, 38) dorsal view; (37, 39) lateral view. (32-33, 36-37) P.
diana Wheeler; (33-34, 38-39) P. latona Wheeler (not to scale).
Male in MHNG collection. Immature stages unknown.
Remarks. When describing P. latona, Wheeler (1909) noted that his new
species ‘is closely related to P. relucens Latr., mayri Roger [= P. illaudata
Walker] and proxima Roger’. He listed the smalier size, more approximate
frontal carinae, different pilosity, shallower promesonotal and ‘mesoépinotal’
notches in the lateral margins, differences in the shape and length of the
pronotal and petiolar spines and several other characters as the main
differences distinguishing his new species. Besides the characters indicated
by Wheeler, P. /atona also differs from the above species by having rather
flat, mildly posteriorly protracted eyes.
160 Australian Entomologist, 2013, 40 (3)
Polyrhachis murina Emery, 1893
(Figs 40-41, 44-45)
Polyrhachis murina Emery, 1893: 198. Lectotype worker (by present designation).
Original localities: BORNEO, SARAWAK (Bedot); PHILIPPINES, Jolo
(MSNG) (examined).
In his original description of P. murina, Emery (1893) listed Sarawak in
Borneo and Jolo in the Philippines as localities for his new species, evidently
considering specimens from both locations to be conspecific. I have
examined two syntype workers of P. murina from Sarawak in the Emery
collection in Genova (MSNG), both bearing identical labels as follows:
“Sarawak, Bedot’ and ‘Polyrhachis murina Emery’. I have also examined
three additional specimens from Sumatra, deposited in the general collection
of that museum and labelled ‘P. murina teste Emery’, and several specimens
identified as P. murina from the Philippines. This examination has shown
that specimens from the Philippines stand well apart from the syntypes of P.
murina from Sarawak, with a number of characters exceeding the variability
that would be expected between different populations of a single biological
species. I therefore believe that the Philippine specimens represent a different
species from P. murina, which is described below as P. starri.
Lectotype designation. To establish the nomenclatural stability of
Polyrhachis murina and to prevent any future selection of a lectotype from
specimens other than those from Sarawak, I here designate, in accordance
with Article 74.7.3 of the International Code of Zoological Nomenclature
(1999), one of the syntype workers from Sarawak mentioned above as the
lectotype of Polyrhachis murina Emery, 1893. The specimen is lodged in the
Emery collection (MSNG) and, in addition to the labels listed above, it now
also bears a red tag: ‘Lectotype, Polyrhachis murina Emery, 1893, designated
by R.J. Kohout, 2013’. The remaining specimens of the original series
consequently become paralectotypes and are labelled accordingly.
Additional material examined. BORNEO, SABAH: Kota Kinabalu, 05°59’N,
116°04’E, 20 m, 9.x.1978, relict rf. (B.B. Lowery) (w); SARAWAK: Bau Distr., Bidi,
90-240 m, 31.viii.1958, rf. (T.C. Maa) (w). INDONESIA, SUMATRA: Pea Ragia,
x.1890 (E. Modigliani) (w); Pangherang-Pisang, x.1890 and iii.1891 (E. Modigliani)
(w); Siboga, x.1890 and iii.1891 (E. Modigliani) (w).
Worker. Dimensions (lectotype cited first): TL c. 6.75, 6.55-7.00; HL 1.78,
1.75-1.87; HW 1.40, 1.34-1.43; CI 79, 75-79; SL 2.21, 2.12-2.31; SI 158,
158-165; PW 1.22, 1.15-1.28; MTL 2.21, 2.12-2.31 (1+4 measured).
Sexuals and immature stages unknown.
Remarks. Polyrhachis murina is morphologically a relatively stable species
with specimens from Borneo and Sumatra closely comparable. Apart from
some differences in the length of the pronotal spines, length and shape of the
lateral petiolar spines and colour of the pubescence, which ranges from
Australian Entomologist, 2013, 40 (3) 161
golden to silvery or just dull greyish, I found them all very similar and
undoubtedly conspecific.
Figs 40-47. Polyrhachis aculeata-group spp: (40, 42) head in full face view; (41, 43)
petiole in frontal view; (44, 46) dorsal view; (45, 47) lateral view. (40-41, 44-45) P.
murina Emery; (42-43, 46-47) P. starri sp. nov. (holotype) (not to scale).
Polyrhachis starri sp. nov.
(Figs 42-43, 46-47)
Types. Holotype worker, PHILIPPINES, LUZON: Camarines Sur, Sibao, Carolina,
Naga City, 29.xii.1982, C. Starr (worker). Paratypes: data as for holotype (2 workers).
Type distribution: Holotype in QMBA (QMT 189650); 1 paratype each in BMNH and
MCZC.
Additional material examined. PHILIPPINES, PALAWAN: Brooke’s Pt, Macagua,
75 m, 27-31.iii.1962 (H. Holtmann) (w), LUZON: Los Baños (F.X. Williams) (w);
Boguio (F.X. Williams) (w); Laguna, Majayjay (no further data) (w); Banahao
(Baker) (w); NEGROS ORIENTAL: Dumaguete, 11.ix.1948 (Domingo Empeso) (w);
MINDANAO: Mt Apo, 5-6000ft (C.F. Clagg) (w).
162 Australian Entomologist, 2013, 40 (3)
Worker. Dimensions (holotype cited first): TL c. 6.75, 6.25-6.80; HL 1.81,
1.72-1.81; HW 1.37, 1.25-1.37; CI 76, 73-76; SL 2.15, 2.09-2.15; SI 157,
155-167; PW 1.09, 1.03-1.15; MTL 2.21, 2.06-2.21 (1+4 measured).
Anterior clypeal margin arcuate, medially very narrowly truncate. Clypeus with
posteriorly raised median carina; in profile with shallow depression medially,
posteriorly rounding into virtually flat basal margin. Frontal triangle distinct. Frontal
carinae sinuate with moderately raised margins; central area with distinct frontal
furrow. Sides of head in front of eyes almost straight, before rounding into mandibular
bases; behind eyes sides rounding into relatively narrow occipital margin. Eyes
moderately convex; in full face view clearly breaking lateral cephalic outline; eyes.
Ocelli lacking. Pronotal dorsum with rather short spines, as long as their basal width
or marginally longer; lateral edges of spines continuous with subparallel pronotal
margins. Promesonotal suture distinctly impressed laterally, rather flat medially;
mesonotal dorsum transverse, about 2x as wide as long, lateral margins converging
posteriorly before rounding into metanotal groove that is poorly indicated medially.
Propodeal dorsum with lateral margins converging posteriorly and terminating in
weakly raised, blunt teeth, with dorsum between them descending into oblique
declivity in medially uninterrupted line; short, rather blunt carinae extend from lateral
propodeal margins towards distinct propodeal spiracles, dividing declivity from sides
of propodeum. Petiole biconvex in lateral view, with dorsal margin raised and bluntly
angular medially; dorsolateral spines relatively short, about as long as secondary spine
situated laterally below base of each spine (Fig. 43). Anterior face of first gastral
segment concave to accommodate posterior face of petiole.
Mandibles distinctly, longitudinally striate, with piliferous pits. Clypeus reticulate-
punctate with rest of head rather finely longitudinally striate. Dorsum of mesosoma
and petiole finely reticulate-punctate; sides of mesosoma wrinkled. Gaster closely
reticulate-punctate.
Mandibular masticatory borders and outer margins with numerous curved, golden
hairs. Anterior clypeal margin with a few anteriorly directed setae medially and fringe
of shorter setae lining margin laterally. A few paired, erect, golden hairs on clypeus
and along frontal carinae; several longer hairs on fore coxae. Gaster with numerous
posteriorly inclined, golden hairs on venter and around apex. No hairs on vertex of
head, dorsum of mesosoma, petiole, antennal scapes and legs. Closely appressed,
silvery pubescence rather diluted on clypeus, more abundant on rest of head and
notably on dorsum of mesosoma and petiole, where it completely hides underlying
sculpturation. Pubescence distinctly longer and golden on gastral dorsum, silvery on
gastral venter.
Colour. Black; legs black or very dark reddish brown.
Queen. Dimensions: TL c. 8.47; HL 2.06; HW 1.59; CI 77; SL 2.28; SI 143;
PW 1.87; MTL 2.50 (1 measured).
Queen distinctly larger than worker with usual characters identifying full sexuality,
including three ocelli, complete thoracic structure and wings. Pronotal spines
distinctly shorter, tooth-like, with posterior lateral margins widely rounded.
Mesoscutum marginally wider than long; lateral margins converging anteriorly into
broadly rounded anterior margin; median line distinct, bifurcate anteriorly; parapsides
Australian Entomologist, 2013, 40 (3) 163
flat, only weakly raised posteriorly; mesoscutum in profile with anterior face widely
rounding onto posteriorly flat dorsum. Mesoscutellum only weakly convex, not
elevated above dorsal plane of mesosoma. Propodeum convex in outline with rather
blunt lateral margins terminating posteriorly in indistinct, medially directed, short
ridges; propodeal dorsum between ridges descending into propodeal declivity in
medially uninterrupted line. Petiole with dorsal margin bluntly angular medially and
dorsal spines reduced to obtuse teeth; dorsolaterally situated secondary spines
relatively long and acute. Sculpturation, pilosity and colour scheme very similar to
worker, except pubescence on dorsum of mesosoma with somewhat golden tint.
Etymology. Named after the collector of the type series, Dr Chris K. Starr of
the University of the West Indies, Trinidad & Tobago, for his generous
donations of many Polyrhachis ants collected during his tenure as an
Associate Professor at De La Salle University in the Phillippines.
Remarks. Although Polyrhachis starri closely resembles P. murina, close
examination and comparison of the available specimens has revealed a
number of distinguishing characters. Polyrhachis starri is generally more
slender (PW <1.15 versus >1.15 in murina), with the mesosoma longer and
only moderately convex in outline (Fig. 47), the profile of the clypeus
shallowly impressed medially and the petiole with its dorsal margin raised
and bluntly angular medially and armed with distinctly shorter dorsolateral
spines (Fig. 43). In contrast, in P. murina the mesosoma is wider and shorter,
with the dorsum distinctly more convex in outline (Fig. 45), the profile of the
clypeus is virtually straight and the petiole has its dorsal margin only weakly
raised and armed with a distinct intercalary tooth and longer dorsolateral
spines (Fig. 41). In addition, the head of P. murina has numerous short, erect
hairs between the eyes and occipital corners that are totally absent in P.
starri. As mentioned above, when describing P murina, Emery (1893)
considered specimens from Sarawak and Philippines (Jolo) to be conspecific.
However, following their comparison I believe they represent separate
species, P. starri from the Philippines and P. murina from Borneo and
Sumatra.
Polyrhachis numeria Fr. Smith, 1861
(Figs 48, 51-52) l
Polyrhachis numeria Fr. Smith, 1861: 42, pl. 1, fig. 25. Holotype worker. Type
locality: INDONESIA, SULAWESI (A.R. Wallace), OUMNH (examined).
Polyrhachis (Myrma) numeria Fr. Smith, Emery, 1925: 201. Combination in P.
(Myrma).Type locality cited erroneously as ‘Halmahera’.
Polyrhachis (Johnia) schizospina Karavaiev, 1927: 44, fig. 20. Holotype queen. Type
locality: INDONESIA, Prinsen Island in Sunda Strait (Karavaiev #2397) IZAS
(examined). Synonymy by Kohout, 1998: 527.
Polyrhachis (Aulacomyrma) schizospina Karavaiev; Hung, 1967: 402. Combination
in P. (Aulacomyrma).
164 Australian Entomologist, 2013, 40 (3)
Worker. Dimensions (holotype): TL c. 6.50; HL 1.65; HW 1.28; CI 77; SL
2.03; SI 158; PW 1.34; MTL 1.96.
Queen. Dimensions (P. schizospina holotype): TL c. 7.96; HL 1.81; HW
1.40; CI 77; SL 2.12; SI 151; PW 1.52; MTL 2.18.
Male and immature stages unknown.
Remarks. Polyrhachis numeria appears to be a rare species and, in spite of
examination of several collections gathered during the 1985 ‘Project
Wallace’ by N.E. Stork and M.J.D. Brendell (BMNH), C. van Achterberg
(RMNH) and subsequently by other collectors, namely B. Gobin (KULB), K.
Ogata & K. Masaoka (ITAK), I. Ketterl (SMNS), J. Constant (IRSN), M.M.
Bos (GUGG) and S. Yamane (KUKJ), the holotype is the only specimen
recorded from Sulawesi. This species is superficially very similar to P. diana
described by Wheeler (1909) from Mindanao. However, recent examination
and direct comparison of the P. diana syntypes with the holotype of P.
numeria indicate that they are distinct species. In P. numeria the eyes are
weakly posteriorly truncate, the superior edge of antennal scapes has
numerous, relatively short hairs and all dorsal body surfaces have rather
abundant, moderately long, golden hairs. In contrast, the eyes in P. diana are
normal, the antennal scapes lack hairs and the body pilosity is confined to the
front of the head and venter and apex of the gaster. Also, the pronotal spines
in P. numeria are somewhat shorter with broad and dorsally flat bases, while
they are longer and more slender with distinctly dorsomedially flattened
bases in P. diana.
Polyrhachis selecta Forel, 1911, stat. nov.
(Figs 49-50, 53-54)
Polyrhachis murina ssp. selecta Forel, 1911: 215. Syntype workers, male. Original
localities: INDONESIA, JAVA, Samarang, Sept. 1909 (E. Jacobson) (w);
Melambong, Juli 1909 (E. Jacobson) (4), MNHG (examined).
Polyrhachis (Myrma) murina selecta Forel; Emery, 1925: 205. Combination in P.
(Myrma).
Worker. Dimensions (syntype): TL c. 6.65; HL 1.78; HW 1.37; CI 77; SL
2.18; SI 159; PW 1.37; MTL 2.25 (1 measured).
Queen and immature stages unknown. Male in MNHG collection.
Remarks. The syntypes of P. selecta are the only available specimens of this
species. Their direct comparison with syntypes of P. murina Emery has
shown these taxa differ in numerous characters and I consider they are
distinct species. Polyrhachis selecta features well developed pronotal spines,
more than twice as long as their basal width, a distinctly longitudinally striate
mesosomal dorsum and long and slender dorsal petiolar spines. In contrast, in
P. murina the pronotal spines are very short, barely as long as their basal
width, the mesosomal dorsum is finely reticulate-punctate, with the
Australian Entomologist, 2013, 40 (3) 165
sculpturation partly hidden by closely appressed silvery or pale golden
pubescence, and the dorsal petiolar spines are shorter, less than twice as long
as their basal width.
Figs 48-54. Polyrhachis aculeata-group spp: (48, 49) head in full face view; (50)
petiole in frontal view; (51, 53) dorsal view; (52, 54) lateral view. (48, 51-52) P.
numeria Fr. Smith (holotype images courtesy of AntWeb.org — casent0901872); (49-
50, 53-54) P. selecta Forel (syntype) (not to scale).
Polyrhachis kebunraya sp. nov.
(Figs 55-56, 59-60)
Types. Holotype worker, INDONESIA, JAVA: Bogor, Kebun Raya, 06°35’S,
106°47°E, 290 m, 7-12.ix.1999, S.K.A. Robson #825 (worker). Paratypes: Bogor,
Kebun Raya, xii.1990 (F. Ito) (2 workers). Type deposition: Holotype in QMBA
(QMT 183499); 1 paratype each in BZMI and SKYC.
166 Australian Entomologist, 2013, 40 (3)
Description. Worker. Dimensions (holotype cited first): TL c. 7.31, 7.21-
7.31; HL 1.84, 1.81-1.87; HW 1.34, 1.31-1.37; CI 73, 72-73; SL 2.37, 2.34-
2.40; SI 177, 175-179; PW 1.28, 1.25-1.31; MTL 2.43, 2.40-2.50 (1+2
measured).
Mandibles with 5 teeth. Anterior clypeal margin arcuate, narrowly medially truncate,
Clypeus with blunt median carina, virtually straight in profile, posteriorly rounding
into rather shallowly impressed basal margin. Frontal triangle distinct. Frontal carinae
sinuate with strongly raised margins; central area narrow with distinct median furrow,
Sides of head in front of eyes converging towards mandibular bases in evenly convex
line; behind eyes sides produced into short, blunt carina extending towards occipital
corners. Eyes distinctly convex, strongly posteriorly truncate, in full face view clearly
breaking lateral cephalic outline. Ocelli lacking. Dorsum of mesosoma evenly convex
in profile; pronotal humeri armed with rather long, acute spines; dorsum of each spine
with longitudinal carina running from base towards tip; outer edge of spine acute,
smoothly merging with lateral margin of pronotal dorsum. Promesonotal suture
distinct, but relatively flat. Mesonotal dorsum with lateral margins narrowly rounded
and weakly raised anteriorly, widely rounded and flat posteriorly; metanotal groove
impressed laterally, indistinct medially. Propodeal dorsum with lateral margins
distinctly converging posteriorly and terminating in narrowly rounded, moderately
raised ridges that continue medially and merge, forming straight transverse carina
dividing propodeal dorsum from shallowly concave declivity; secondary carinae
extends from propodeal margins towards propodeal spiracles, dividing declivity from
sides of propodeum. Petiole biconvex in profile, armed with a pair of dorsolaterally
and posteriorly directed, acute spines situated on dorsolateral angles of petiole; bases
of spines close to posterior face of petiole with dorsal margin of petiole clearly visible
in lateral view (Fig. 60); shorter, dorsally emarginate, tooth situated laterally below
base of each spine. Anterior face of first gastral segment concave to accommodate
posterior face of petiole, anterodorsal margin distinctly lower than full height of
petiolar node.
Mandibles finely, longitudinally striate with numerous piliferous pits. Clypeus finely
reticulate-punctate, sculpture on dorsum and sides of head distinctly longitudinally
organised. Dorsum of mesosoma finely longitudinally striate, striae more prominent
on pronotal spines and along lateral mesosomal margins; petiole and gaster very
finely reticulate-punctate. Tips of pronotal and petiolar spines highly polished;
propodeal declivity, petiole and gaster finely shagreened, semipolished.Mandibles
along masticatory and outer borders with semierect, relatively short, golden hairs.
Anterior clypeal margin with a few rather long, anteriorly directed, golden setae
medially and few very short setae laterally. Numerous moderately long, erect, golden
hairs on clypeus, along frontal carinae and a few shorter hairs on vertex; several
shorter hairs along superior edge of antennal scapes. Hairs totally absent from dorsum
of mesosoma and petiole. Only a few moderately long hairs on anterior and posterior
faces of fore coxae. Gaster with numerous posteriorly directed hairs around apex and
on venter.
Colour. Black throughout, only extreme tip of apical funicular segment
reddish brown.
Sexuals and immature stages unknown.
Australian Entomologist, 2013, 40 (3) 167
Figs 55-62. Polyrhachis aculeata-group spp: (55, 57) head in full face view ; (56)
petiole in frontal view; (58) base of antennal scape; (59, 61) dorsal view; (60, 62)
lateral view. (55-56, 59-60) P. kebunraya sp. nov. (holotype); (57-58, 61-62) P.
watanasiti sp. nov. (holotype) (not to scale).
Etymology. Named after the type locality, Bogor Botanical Gardens,
popularly known as Kebun Raya.
Remarks. Polyrhachis kebunraya is most similar to P. dimoculata, described
above, from Borneo. They share the fine reticulate-punctate sculpturation of
the dorsal body surfaces, distinctly striate pronotal spines, including their
bases, and a virtual lack of pilosity on the vertex of the head, dorsum of the
mesosoma, petiole and dorsum of the gaster. However, the sculpture on the
dorsum of the head and mesosoma in P. kebunraya is distinctly
longitudinally directed and covered with a very fine pile of closely appressed
pubescence that is completely lacking in P. dimoculata. The truncate eyes in
P. kebunraya are distinctly more convex and more protracted posteriorly and
the sides of head behind the eyes are produced into short, blunt, carinae that
168 Australian Entomologist, 2013, 40 (3)
are absent in P. dimoculata. Also, the antennal scapes in P. kebunraya have
several hairs along their superior edge that are completely lacking in P.
dimoculata.
Polyrhachis kebunraya appears to be restricted to the type locality and is
known only from the specimens collected by Simon Robson and Fuminori
Ito.
Polyrhachis watanasiti sp. nov.
(Figs 57-58, 61-62)
Type. Holotype worker, SOUTHERN THAILAND: Center Ranong Prov., Ngao
Mangrove For., 24.x.2003, mangroves, N. Naw (worker). Type distribution: Holotype
in QMBA (QMT 189651).
Worker. Dimensions: TL c.6.85; HL 1.75; HW 1.28; CI 73; SL 2.31; SI 180;
PW 1.18; MTL 2.28.
Anterior clypeal margin arcuate, medially obtusely truncate. Clypeus with blunt,
poorly indicated median carina; clypeus straight in profile with rather flat basal
margin.Frontal triangle distinct. Frontal carinae very closely approximate anteriorly
with sharply raised, almost vertical margins; central area very narrow with distinct
frontal furrow. Antennal scapes with bases distinctly broadened (Fig. 58). Sides of
head in front of eyes converging towards mandibular bases in even convex line;
behind eyes sides rounding into moderately convex occipital margin. Eyes truncate
posteriorly, in full face view clearly exceeding lateral cephalic outline. Ocelli lacking.
Pronotal dorsum with slender, anterolaterally directed, acute spines, about 3x as long
as basal width; outer edges of spines acute and basally continuous with virtually
parallel pronotal margins, promesonotal suture distinctly impressed laterally, rather
flat medially. Mesonotal lateral margins narrowly rounded and distinctly raised
anteriorly, rather flat posteriorly before converging into medially flat metanotal
groove. Propodeum with lateral margins distinctly converging posteriorly and
terminating in distinct, upturned ridges that meet medially and form transverse carina
dividing propodeal dorsum from shallowly concave declivity. Petiole biconvex in
profile; transversely broad, convex dorsal margin armed with moderately long,
dorsolaterally directed and outwardly curved spines; lateral margins of petiole with
secondary, shorter, somewhat dorsally flattened tooth below each spine. Anterior face
of first gastral segment concave to accommodate posterior face of petiole;
anterodorsal margin narrowly rounding onto dorsum.
Mandibles finely, mostly longitudinally striate with piliferous pits. Clypeus and rest of
head reticulate-punctate with sculpture on vertex and sides of head somewhat
longitudinally directed; pronotal spines longitudinally striate, striae continued onto
lateral margins of pronotum; mesosomal and propodeal dorsa striate medially. Petiole
and gaster finely reticulate-punctate, opaque.
Mandibular masticatory and outer borders with numerous curved, golden hairs.
Anterior clypeal margin with a few anteriorly directed setae medially. Numerous
rather long hairs on clypeus, front and vertex of head, many breaking lateral cephalic
outline. Antennal scapes with several shorter hairs along superior edge. Dorsum of
mesosoma with only a few very short, bristle-like hairs on pronotal dorsum; several
Australian Entomologist, 2013, 40 (3) 169
longer hairs on fore coxae and along subpetiolar process; no hairs on mesonotal and
propodeal dorsa, petiole and legs.Gaster with numerous hairs on venter and towards
apex. Closely appressed, silvery pubescence distributed in various densities over
whole body, partly obscuring underlying sculpturation on head, dorsum of mesosoma
and sides of petiole and gaster.
Colour. Black, virtually throughout; only condyla of scape and extreme tip of
apical funicular segment reddish brown.
Sexuals and immature stages unknown.
Etymology. Named after Prof. Dr Suparoek Watanasit of Prince of Songkla
University, Hat Yai, Thailand, for his generous support during my visit to
southern Thailand.
Remarks. Polyrhachis watanasiti is very similar to P. pubescens but differs in
having the bases of the antennal scapes distinctly broadened and flattened
(Fig. 58) and the body pubescence greatly reduced.
Acknowledgements
I am very grateful to the Harvard University Grant Committee for three Ernst
Mayr Grants that allowed me to travel and study specimens in the Museum of
Comparative Zoology and other museums and institutions in the USA and
Europe. I am much indebted to Prof. Dr Seiki Yamane for access to
Polyrhachis specimens from his sizeable collection and for generously
donating many important specimens to the QMBA. My special thanks go to
Prof. Simon K.A. Robson (JCUT), Dr Nawee Noon-anant (PSUT) and
Fuminori Ito, who provided many specimens from their private collections
gathered during their collecting activities throughout South East Asia. I owe
my sincere thanks to Dr Steve O. Shattuck (ANIC), Assoc. Prof. Dr Yoshiaki
Hashimoto (MNHA) and Hans Peter Katzmann (UUUG) for producing the
digital images used for illustrations. To Dr Brian L. Fisher (CASC), I owe my
thanks for permission to reproduce images taken by the AntWeb.org team. To
the curators and other staff of the museums and institutions listed earlier, I
am grateful for loans of types and other material under their supervision.
Finally, I would like to extend my gratitude to Dr Chris Burwell (QMBA) for
reading and commenting on the draft manuscript.
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172 Australian Entomologist, 2013, 40 (3)
MISCELLANEOUS NOTES
The following note is abstracted from the Entomological Society of
Queensland News Bulletin and appeared, with illustrations, in the Volume
and Part indicated.
Orthomorpha coarctata (de Saussure, 1860) [an introduced millipede]
(Polydesmida: Paradoxosomatidae) was found at an apartment complex in
Brisbane’s West End in April, 2013. This is the southernmost record known
for the species in mainland Australia. O. coarctata was first collected in
Darwin in 1961 and has since spread to northwest Western Australia. In
2008, specimens were received from Hamilton Island in Queensland, 1000
km north of Brisbane.
O. coarctata is believed to be native to Indonesia. It is now established on
most Pacific Islands and in some Southeast Asian cities, as well as parts of
tropical South America, the Caribbean and extreme southeastern USA. In
non-mainland Australia it occurs on Christmas and Lord Howe Islands.
The species is 15-20 mm long and medium to dark brown in colour, with pale
yellow tips to the paranota, or ‘keels’ along its back. Unfortunately, this
description fits more than one invasive millipede and a few native Australian
species also. Positive identification requires careful examination of the
gonopods of a mature male.
It is not known if O. coarctata competes with any native millipedes but
eradication is not possible since it spends much of its life hidden in garden
mulch. Like most other millipedes, O. coarctata eats rotting vegetation and is
harmless to humans and pets. It is known to wander (sometimes in large
numbers) after heavy rains, mainly in summer. The wanderers are adults
looking to disperse and mate. Individuals take 1-2 years to mature.
R. MESIBOV — A pantropical tramp in Brisbane. — Volume 41(2): 26-27
(May 2013).
ENTOMOLOGICAL NOTICES
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THE AUSTRALIAN
Entomologist
Volume 40, Part 3, 26 August 2013
see
CONTENTS
DAVID, K.J. AND HANCOCK, D.L.
‘The first record of Ortalotrypeta isshikii (Matsumura) and subfamily Tachiniscinae
(Diptera: Tephritidae) from India, with redescription of the species
HANCOCK, D.L.
A yellow-form male of Delias mysis mysis (Fabricius) (Lepidoptera: Pieridae) from
northern Queensland
HOPKINSON, M.
Life history notes and new food plant records for Graphium macfarlanei macfarlanei
(Butler, 1877) (Lepidoptera: Papilionidae: Papilioninae)
KING, D.
A provisional range extension for Theclinesthes sulpitius (Miskin) (Lepidoptera: Lycaenidae)
in Western Australia
KING, D.
Range extension of Acraea terpsicore (Linnaeus) (Lepidoptera: Nymphalidae) to
Western Australia
KOHOUT, RJ. :
A review of the Polyrhachis aculeata species-group of the subgenus Myrma Billberg
(Hymenoptera: Formicidae: Formicinae), with keys and descriptions of new species
ee
MOUND, L.A. AND DANG, L.-H.
New Australian records of Asian or New Zealand Phlaeothripidae (Thysanoptera)
SSeS
ORR, A.
Predation on butterflies and other insects by breeding Rainbowbirds (Merops ornatus:
Meropidae) in South-East Queensland
MISCELLANEOUS NOTES
ISSN 1320 6133