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BRITISH MUSEUM (NATURAL HISTCRY)

INSECTS OF SAMOA

AND OTHER SAMOAN TERRESTRIAL

ARTHROPODA

PART II. HEMIPTERA

FASC. 2. Pp. 47-80

CERCOPIDAE

By V. LALLEMAND, M.D.

CICADIDAE

By J. G. MYERS, Sc.D.

AQUATIC AND SEMI-AQUATIC HETEROPTERA

By PROF. TEISO ESAKI

WITH THIRTY-EIGHT TEXT-FIGURES

LONDON :

_ PRINTED BY ORDER OF THE TRUSTEES OF THE BRITISH MUSEUM

SOLD AT

Tur Brivish Museum (Naturan Hisvory), CRomwrLL Roan, S.W.7

AND BY

B. Quaritcu, Lrp,; Dotav & Co., Lrp.; Tax Oxrorp University Press; anp

Wuetpon & Wustry, Lrp,, Lonpon; atso py Oxiver & Boyp, EpinsurcH

1928

L3sued 23rd June, 1928.] : [Price Tro Shillings and Sixpence.

INSECTS OF SAMOA

AND OTHER SAMOAN TERRESTRIAL

ARTHROPODA

Although a monograph, or series of papers, dealing comprehensively with —

the land arthropod fauna of any group of islands in the South Pacific may be

expected to yield valuable results, in connection with distribution, modification

_ due ito isolation, and other problems, no such work is at present in existence. oe

In order in some measure to remedy this deficiency, and in view of benefits

directly accruing to the National Collections, the Trustees of the British

Museum have undertaken the publication of an account of the Insects and other

Terrestrial. Arthropoda collected in the Samoan Islands, in 1924-1925, by

Messrs. P. A. Buxton and G. H. E. Hopkins, during the Expedition of the

London School of Hygiene and Tropical Medicine to the South Pacific.

Advaritage has been taken of the opportunity thus afforded, to make the studies © 4

as complete as possible by including in them all Samoan material of the groups

concerned in both the British Museum (Natural History) and (by courtesy . 7

the authorities of that institution) the Bishop Museum, Honolulu. |

le ic not wtended Ghet contutore te une ce shall i contac to de :

Museum Staff or to any one nation, but, so far as possible, the assistance of the

leading authorities on all groups to be dealt with has been obtained.

The work will be divided into igh’ ‘Parts ” {see p. 3 of wrapper), which :

will be subdivided ito “Fascicles.”’ Each of the latter, which will appear as

ready in any order, will consist of one or more contributions. On the

completion of the work it is intended to issue a general survey, summarising

the whole and drawing from it such conclusions as may be warranted.

A list of Fascicles already issued will be found on the back of this cee

| E. E. AUSTEN,

Keeper of Entomology. Aa

British Museum (Naturat History),

Cromwe.t Roap, S.W.7.

INSECTS OF SAMOA |

AND OTHER. SAMOAN TERRESTRIAL

ARTHROPODA |

Although a monograph, or series of Sapele desing comprehensively with :

the land arthropod fauna of any group of islands in the South Pacific may be -

expected to yield valuable results, i in connection with distribution, modification ©

_ due to isolation, and other problems, ne such work is at present in “existence. :

_In order in some measure to remedy this deficiency, and in view of benefits

directly accrumg to the National Collections, the Trustees of the British —

Museum have undertaken the publication of an account of the Insects and other —

‘Terrestrial. Arthropoda collected in the Samoan Islands, in 1924- 1925, by :

Messrs. P. A. Buxton and ey H. E. Hopkins, during the Expedition of the —

London School of Hygiene and Tropical Medicine to the South Pacific.

Advaritage has been taken of the opportunity thus afforded, to make the studies

as complete as possible: by including in them all Samoan material of the. groups.

concerned in both the British Museum (Natural History) and (by conti 6 e ‘

the authorities of that institution) the Bishop Museum, Honolulu. :

It is not intended that contributors to. the text shall Me eonkined t to ie

Museum Staff or to any one nation, but, so far as possible, the assistance of the

leading authorities on all groups: to be dealt with has ao obtained.

The work will He ede cight “Parts (see p. 3 of ween aiiich

will be subdivided into “‘Fascicles.” Each of the latter, which will appear as

ready in any order, will consist of one or more contributions. On the

completion of the work it is intended to issue a general survey, ee ;

the whole and drawing from it such conclusions as may be warranted. :

A list of Fascicles already issued will be found on the Sade of this wrapper.

EE AUSTEN,

Keeper of pap

British Museum (Natura Hisrory), thas

CromwEL.L Roap, S.W.7.

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INSHCPS OF SAMOA

Parr II, Fasc, 2

HEMIPTERA

CERCOPIDAE

Par V. LALLEMAND, M.D., Uccle, Belgique

(Avec 10 Texte-figures)

I. INTRODUCTION

Le genre Clovia est répandu en Afrique, en Asie et en Océanie a peu prés

entre les latitudes 30° N. et 8.; les espéces sont nombreuses en Océanie.

Malheureusement les homoptéres et spécialement certains groupes, dont les

Cercopides, ont été peu recherchés dans plusieurs de ces iles et les rapports

entr’elles des différentes espéces de ces régions sont encore assez difficiles a

établir. Une de celles ci-dessous décrites C. guddi est voisine de C. insignis

Distant, recueillie sur Vile Elisabeth (ou Henderson), de C. oceanica Jacobi,

trouvée dans les iles Tonga, et également de deux autres (C. rapana de Vile Rapa

et C. soceabilis de Vile Tahiti) * ; ces quatre Clovia constituent un groupe bien

distinct, ce sont probablement quatre formes locales d’ une seule et méme souche.

Le genre Perinoia est propre a VOcéanie, la P. caput-ranae (= birarensis

Kirkaldy) a été trouvée en Nouvelle-Guinée, Nouvelle-Bretagne et enfin dans les

iles Samoa.

Le genre Aufidus est également spécial & l’Océanie ; la plupart des espéces

décrites proviennent de la Nouvelle-Guinée, qui parait étre le centre de disper-

sion ; quelques unes ont été recueillies dans les iles environnantes 4 Aroé, Birara

(Nouvelle-Bretagne), une sur l’ile Gilolo (Moluques), et enfin deux autres, pro-

venant du Queensland, ont été décrites par Kirkaldy ; pour ces derniéres, il

* Ann. Mag. Nat. Hist. (10) I, p. 634, 1928.

II, 2 1

48 INSECTS OF SAMOA.

avait eréé les genres Aufidellus et Aufiterna (Rep. Exp. Stat. Haw. Sug. Plant.

Assoc., Vol. 9, pp. 381 et 382, 1906). Elles ont été rapportées au genre Aufidus

par Distant (Rhynchota malayana, Vol. 1, part 1, p. 132, 1908).

Il. Les ESPECES RECUEILLES DANS LES ILES SAMOA.

APHROPHORINAE.

1. Clovia swezeyi, sp. n. Fig. 1.

29. Noire ou brun-noir; sur les cotés du front, des stries transversales

jaunatres ; sur le vertex de chaque cété, une ligne partant de l’angle postérieur

de la partie frontale, longeant l’oeil et s’étendant jusqu’au bord postérieur et

derriére elle, sur le pronotum, une petite

tache, jaune-brunatre ; tiers basal du

clavus, ainsi que sur le corium, une

petite tache longitudinale prés de la

suture et sur le méme plan au bord

externe une autre en forme de trapéze

(ces trois taches formant une bande

transversale), enfin a la partie apicale,

partant du bord externe, une tache

allongée s’étendant jusqu’ entre les

branches du radius, jaune-clair; ex-

trémité du clavus et partie adjacente

du corium d’un jaune légérement brun ;

la partie apicale des élytres est plus

Texte-Fic. 1.—Clovia swezeyi, sp. n. claire et plus ou moins transparente ;

alles enfumées, a nervures noires; sur

le pro- et mesosternum, partant de l’oeil, une bande jaune; rostre, pattes,

hanches, jaune-brunatre ; tibias postérieurs plus foncés; extrémité du rostre,

des tarses et des épines, noire; la couleur noire du vertex peut se muer en un

brun plus ou moins foneé.

Vertex en angle aigu, a extrémité arrondie, aussi long que large entre les

yeux ; ocelles a peu prés a égale distance l’un de l'autre et des yeux ; pronotum

et écusson assez densément ponctués en stries transversales, sur le premier,

une trace de caréne longitudinale ; deux épines sur les tibias postérieurs. Cette

espéece, comme les suivantes, a les nervures saillantes spécialement les apicales ;

le réseau apical est composé de cing cellules.

CERCOPIDAE. 49

Longueur—10-5 mm.

Habitat—lle Savaii, Safune, mai (Swezey) ; [le Tutuila, Leone, juillet(Bryan).

Je dédie cette espéce a Mr. Swezey qui l’a récoltée dans lile Savaii.

2. Clovia oceanica Jacobi.

Arch. f. Naturges. Jahrg. 87, Heft 12, p. 14, 1921.

Tonga (type) ; Samoa (Jacobi).

3. Clovia juddi, sp. n. Fig. 2.

35,492. Noire; vertex (sauf une bande postérieure), écusson, une bande

longitudinale s’élargissant légérement en arriére le long du bord externe et

extrémité du clavus, jaunes; sont d’un_ blanc-

jaunatre, transparentes, les taches suivantes: sur

le corium, une prés de l’extrémité du clavus, en

face de celle-ci, partant du bord externe une

deuxiéme de forme allongée, se dirigeant en arriére

et en dedans, et se terminant en pointe, enfin prés

du bord apical deux autres plus petites (sur cer-

tains exemplaires ces derniéres, ainsi que celles de

Vextrémité du clavus peuvent disparaitre) ; front

jaune, ayant 6 a 7 stries transversales latérales et = Texrx-ric. 2.—Clovia juddi,

en dessous de celles-ci les cdtés bruns. Espéce trés shea:

voisine de C. insignis Dist., dont elle se différencie par le dessin du pronotum et

des élytres, et de C. oceanica Jacobi, dont elle se distingue principalement par

l’écusson jaune.

Longueur—g, 65 mm.; 97 a7-5 mm.

Habitat—lles Manua ; Ofu et Tau, février et septembre (Judd, Swezey et

Wilder).

Je dédie cette espéce & Mr. Judd, un de ceux qui en ont récolté des

exemplaires.

4. Clovia biformis, sp. n. Fig. 3.

g. Téte, écusson, sternum, abdomen, jaunes; élytres jaunes a la base,

plus pales ensuite et plus ou moins transparents, recouverts d’une villosité

blanche, finement bordés de brun au bord apical, deux ou trois petites nervures,

situées prés de celui-ci plus ou moins brunes ; sont noirs, le pronotum, 6 lignes

INSECTS OF SAMOA.

transversales interrompues & la partie médiane du front, l’extrémité du rostre,

des tarses et des épines ; yeux bruns tachés de noir.

? différe par le pronotum jaune, le bord apical et les nervures @ peine bruns.

Vertex en angle obtus, sa longeur égale environ les trois quarts de sa largeur

au bord postérieur ; ocelles égérement plus prés l’un de Vautre que des yeux ;

TEXTE-FIG 3.—Clovia biformis, sp. n.: A, male; B, femelle.

pronotum ponctué en stries plus ou moins transversales; derriére son bord

antérieur, une série de fossettes formant une ligne paralléle a celui-ci; deux

épines sur les tibias postérieurs.

Longqueur—9 rom.

Habitat—9 3 et 6 9, recueillis entre 100 et 400 m. d’altitude durant les mois

TEXTE-FIG. 4.—Clovia bryant, sp. n.

de janvier, avril, juin, juillet, aout et septembre,

sur les herbes dans Vile Tutuila: a Pago Pago

et dans le centre; et Vile Upolu: a Malolo-

lelei.

5. Clovia bryani, sp. n. Fig. 4.

2 3. Orange; yeux gris-brun fortement

tachés de noir; bords latéro-antérieurs du

pronotum noirs ; petites nervures apicales plus

ou moins brunes; alles enfumées a nervures

noires ; face supérieure de l’abdomen et bords

de sa face inférieure, extrémité du rostre, des

tarses et des épines, brun-noir; surface supérieure du corps recouverte d’une

villosité argentée.

CERCOPIDAE. 51

Front légérement aplati, 4 stries latérales assez légéres; vertex a bord

antérieur en angle obtus, arrondi, & surface déclive en avant, sa longeur égale &

peu prés les trois-quarts de sa largeur au bord postérieur ; deux épines sur les

tibias postérieurs.

Longueur—7-5 mam.

Habitat—Ile Sava: Salailua, mai (Bryan).

Je dédie cette espéce & celui qui l’a récoltée, Mr. K. H. Bryan.

6. Clovia armstrongi, sp. n. Fig. 5.

2. Jaune-orange, recouverte d’un duvet blanchatre ; élytres oranges et

opaques sur le clavus et le long de la moitié antérieure du bord externe entre

celui-ci et le radius, blanc-jaunatre et trans-

parents sur le restant; six stries latérales,

transversales sur le front, une fine bande

longitudinale sur le radius depuis la base

jusqu’un peu au dela du tiers basal, bord

externe, des nervures apicales, bord apical,

bord interne trés finement, extrémité des

rostre, des épines et des tarses, brun-noir.

Ces différentes taches a |’exception des lignes

du front peuvent plus ou moins seffacer.

Abdomen brun-clair ; sur le prosternum, au

niveau de la base des ailes, une tache brun- [yyep-pe. 5.—Clovia armstrongt, sp. n.

foncé.

Vertex long, en angle aigu, 4 extrémité arrondie ; sur le pronotum une série

de petites fossettes allongées, formant une ligne paralléle au bord antérieur ;

deux épines sur les tibias postérieurs ; front relativement assez aplati.

Longueur—8 mm.

Habitat—Ile Upolu: Apia; Siumu ; recueillis en aoait et novembre.

Je dédie cette espéce a Dr. J. 8. Armstrong, qui l’a capturé.

7. Clovia buxtoni, sp. n. Fig. 6.

13. Blanc-jaunatre, & téte égérement plus jaune ; huit stries transversales,

latérales du front, yeux et sur les élytres, une large bande transversale, médiane

ainsi qu’un petit triangle prés de la base entre la suture et le radius, noirs ;

extrémité du rostre et des tarses, bande longitudinale médiane du vertex, nervures

52 INSECTS OF SAMOA.

apicales et bord apical jusque la pote du clavus, abdomen, d’un brun plus ou

moins foncé ; partie apicale des élytres transparente ; ailes hyalines, a nervures

brunes. Partie médiane du front lisse, sur les cétés, des stries transversales ;

rostre s étendant entre les hanchés médianes ; yeux assez gros, saillants ; ocelles

petits, légérement plus prés un de l'autre que des yeux; vertex aplati, a peu

prés aussi long que large au bord postérieur entre les yeux ; pronotum ponctué

. en stries transversales, 4 faible sillon médian, longitudinal ; deux épines sur les

tibias postérieurs.

Longueur—6-5 ; élytres, longueur: 5 mm., largeur: 1-5 mm.

Habitat—Ile Upolu: Vailima, recueilli en décembre.

. Je dédie cette espéce a celui qui la récoltée et a rassemblé la collection

présente des homopteéres des iles Samoa.

TrexteE-FIc. 6.—Clovia buxtoni, sp. n. TEXTE-FIG. 7.—Clovia navigans Jacobi.

Led

8. Clovia navigans Jacobi. Fig. 7.

Arch. f. Naturges. Jahrg. 87, Heft 12, p. 15, 1921.

Habitat—lle Upolu: Apia; Mulifanua; Vailutai; Falelatai; Lalomanu.

Tle Savaii: Tuasivi; Salailua; Fagamalo; Safune. Ile Tutuila: Pago Pago ;

Amauli.

Hspéce répandue de préférence, semble-t-il, non loin des cotes.

9. Perinoia caput-ranae Le Guillon.

Rev. Zool., Vol. 4, p. 262, 1841 (Aphrophora caput-ranae).

Samoa; Nouvelle-Guinée ; Nouvelle-Bretagne (Jacobi).

CERCOPIDAE od

TOMASPIDINAE.

10. Aufidus hopkinsi, sp. n. Fig. 8.

1 3. Partie supérieure du corps noir-brun, brillante, recouverte d’un duvet

brun ; partie antérieure du vertex brune; ailes brun-noir, plus foncées vers la

partie apicale; front, clypeus, rostre, pattes, jaunes; extrémité des tarses et

des épines, noire; abdomen brun; élytres, a base légérement plus brune, a

extrémité brun-clair, transparente, montrant en arriére du milieu une grande

tache blanche, hyaline, s’étendant du bord externe au médian.

Ocelles trés proches l'un de l’autre; sur le pronotum, ponctué en stries

transversales, une fine caréne médiane ; deux épines sur les tibias postérieurs.

Longueur—s8 mm.

Habitat—lle Upolu: Malololelei; recueilli en juin par P. A. Buxton et

G. H. E. Hopkins.

Je dédie cette espéce a ce dernier.

TEXTE-FIG. 8.—Aufidus hopkinst, sp. n. TEXTE-FIG. 9.—Aufidus samoanus, sp. D.,

forme typique.

11. Aufidus samoanus, sp. n. Figs. 9 et 10.

26 g et 47 9. Orange ou quelquefois brun-orange ; abdomen plus foncé ;

élytres plus clairs, transparents spécialement dans la partie apicale; ocelles,

yeux, extrémité des tarses, épines et sur les élytres une bande et une tache,

noir-brun ; la bande des élytres transversale, située & peu prés au milieu, part

du bord externe et s’étend plus ou moins loin vers l’intérieur, elle peut méme

sur certains exemplaires atteindre le bord interne et alors est ondulée, sur d’autres

elle est trés courte ; la tache part de l’extrémité du bord externe et s’étend plus

INSECTS OF SAMOA.

ou moins loin dans la direction de la pointe du clavus ; sur certains spécimens

bien marqués, la pointe du clavus est brune, la tache apicale peut s’allonger vers

celle-ci et méme l’atteindre ; de méme, les bords postérieurs du vertex et du

pronotum peuvent étre bruns aussi; partie supérieure du corps recouverte d'une

villosité rousse.

TEXTE-FIG. 10.—Aufidus samoanus

var. wmmaculata (A) ;

obscura (B).

Longueur—6-5 & 7 mm.

Sillon frontal large et relativement peu profond, commencant

non loin du bord antérieur de la téte, celui-ci

est en angle obtus; ocelles trés proches lun de

Vautre ; milieu de l’écusson creusé en fossette

longitudinale ; une épine sur les tibias postérieurs.

Var. unmaculata : aucune tache a la face

supérieure du corps.

Var. obscura: Vertex, pronotum, moitié

basale et tache apicale des élytres brun-noir ; le

bord postérieur de la partie brune n’est pas droit

mais légérement ondulé comme la bande sur la

forme type ; la coloration orange primitive peut

apparaitre par places, a la partie antérieure du

vertex et du pronotum, ainsi qua la base des

élytres.

Habitat—Ue Savai: Tuasivi; Salailua; Safune. Ile Upolu: Malololelei ;

Vaea; Apia; Vailima; Mulifanua; Falelatai; Siumu; Aleipata. [le Tutuila:

Amauli; Afono; Fagasa; Leone; Pago Pago, et le centre de Iile.

Var. ammaculata: Ile Savaii: Safune. Ile Tutuila: Pago Pago.

Var. obscura: Ile Upolu: Siumu; Malololelei; Vaea. Ile Savai: Safune.

Recueillis durant toute année, sauf pendant les mois de janvier et d’octobre.

Texte-fig.

HE oo be

or D

LISTE DES FIGURES.

Clovia swezeyt, sp. n.

Clovia juddi, sp. n.

. Clovia biformis, sp. n.: A, male, B, femelle.

Clovia bryant, sp. n.

Clovia armstrongi, sp. n.

Clovia buxtoni, sp. n.

Clovia navigans Jacobi.

Aufidus hopkinsi, sp. n.

9. dufidus samoanus, sp. n., forme typique.

. Aufidus samoanus var. immaculata (A) ; var. obscura (B).

CICADIDAE

By J. G. Myers, Sc.D.

(With 22 Text-figures.)

THE cicadas seem to be represented in the Samoan Islands by one abundant

and widespread species, and by two others which, judging from the collections

examined, are very rare. Baeturia exhausta Guér. is essentially Austro-Malayan

in distribution, and Samoa would appear to be its eastern limit, which it has

reached by a route north of Fiji, in which group it does not occur. Tibicen

kuruduadua Dist. occurs elsewhere only in Fiji, while the third species belongs

to a remarkable new endemic genus—the first peculiarly Polynesian genus of

cicadas.* This latter has Austro-Malayan affinities, but is strongly isolated.

It is thus apparent that the evidence of the cicadas, so far as it goes, corroborates

the general conclusion drawn by Muir from a study of the Fulgoroids, “ that the

Samoan Islands form an outpost of the Polynesian plateau.”

I am deeply indebted to Mr. A. J. E. Terzi for the beautiful drawing of the

_ venation which illustrates the new genus; and to Mr. W. E. China for many

courtesies at the British Museum.

Subfamily PLATYPLEURINAE Handl.

Genus Trpicen Latr. 1825

Type Cicada plebera Scop.

1. Tibicen kuruduadua Dist.

Cicada kuruduadua Distant, Trans. Ent. Soc. London (1881), p. 645, 1881; Syn. Cat. Hom.

Crcad., p. 39, 1906.

Upolu: Malololelei, 1 9, 30.viii.1925 (Armstrong).

In the absence of a male, this seems indistinguishable, save by paler colour,

from 7’. kuruduadua, hitherto known only from Fiji. As a matter of fact this

* Dasypsaltria Haupt. is synonymous with Platypleura, and is not Samoan. See below.

56 INSECTS OF SAMOA.

female looks more truly congeneric with the type than do the females placed

with the latter in the British Museum.

Structurally, except in the greater length of the teemina, this species

resembles 7. (Cicada) plebeia Scop., with which it may be considered strictly

congeneric. It certainly does not fall into any of the segregates—Diceroprocta

Stal, Chremistica Stal, Rihana Distant—which it has been proposed to separate

from the genus of which C. plebeia Scop. is the type. With regard to this genus

I cannot accept Horvath’s (Ann. Hist. Nat. Mus. Hung., 23, pp. 93-98, 1926)

new name Lyristes. The name Trbicen was first proposed in 1825, by Latreille

(Fam. nat. Regne Anim., p. 426) with C. plebeia as the only species mentioned.

* Tibicen ” is not a French word, as Horvath claims, nor is there any excuse for

considering it, as Horvath does, a nomen nudum, since C. plebera, given as its

example, is still and was then, the best-known cicada in the world. I therefore

follow Van Duzee in considering C. plebeva Scop. as the type of the genus Tibicen

Latr. (= Cicada auctt. nec Linn.*). This course creates, in the subfamily

nomenclature, a difficulty which Van Duzee (Cat. Hemipt. North Amer., pp. 488,

498, 1917) has not met by calling the subfamily based on Trbicen Latr. Tibi-

ceninae, and the other, founded on Tibicina Amyot, Tibicininae. Formed

correctly from Trbicen and from Tibicina respectively, by adding -inae to the

stem, the two subfamily names would be identical. I have therefore followed

Handlirsch (a Schroder, Handb. d. Entom., Bd. 3, pp. 1115-1117, 1925) in calling

the former subfamily Platypleurinae, after another well-known, old and repre-

sentative genus.

Moana,t ecm.

Head, including eyes, much narrower than base of mesonotum, head pro-

duced conically half its length in front of eyes. Frons elongate, considerably

swollen basally, smooth and shining, the cross striae indistinct. Antennal scrobes

prominent. Ocelli almost contiguous, the median ocellus directed straight

forward. Pronotum apically the widest part of body, basally greatly con-

stricted, so that the margins, which are slightly expanded at the apical angles,

run very obliquely to the head. Sulci of vertex and pronotum deeply marked.

* Since C. plebeia Scop. was not among the originally included species of Cicada Linn. 1758,

it obviously cannot be the genotype. The genotype now generally recognised is C. orm Linn.

+ Moana—Samoan name for the ocean—thus appropriate for a cicadid genus, endemic in

Oceania.

CICADIDAE. 57

Mesonotum twice the length of pronotum; basal three-quarters domed and

swollen; cruciform elevation relatively depressed, little developed, much con-

stricted laterally. Abdomen small, conical, four-thirds length of mesonotum,

than which it is almost wholly narrower, giving whole head and trunk a general

fusiform shape. Tymbal covers complete, consisting of a somewhat narrow

tongue reaching antero-laterally from each side of 2nd segment. Legs long

and slender. Meracanthus long and slender, and hollowed ventrally.

Tegmina unusually expansive, much longer than body, with wings also,

cross-ribbed at wide intervals, especially in the huge cell Cu;. Stem of M

extraordinarily thin and weak, leaving basal cell practically contiguous with

TExt-FIic. 1.—Moana expansa g. et sp. n., tegmen. A. J. EH. Terzi del.

that of Cu;. Cu, very stout, rib-like and compressed almost at right angles to

the plane of the tegmen, strongly arched towards costal margin. A, very

stout, practically contiguous with anal margin, which is itself much thickened,

and bent outwards, so that clavus is wider than usual. Nodal line barely

discernible on membrane. Hind wings normal, with six apical cells. Pygophor

with no median dorsal spine, but two lateral projections directed caudad, as in

Sawda, Fatima, Cosmopsaltria and related genera, but shorter. (Rest of the

pygophor missing in the case of the type.) Curiously enough in the last nymph

of same sex the pygophor bears a typical median dorsal spine.

The position of this genus, partly on account of the poor condition of the

unique type, is obscure. The venation, however, shows it to be an extraordinarily

aberrant form, which, with some hesitation, I place nearer to Sawda Dist. than

to any other known genus. The tymbal covers closely resemble those of Sawda,

though the opercula are much shorter than is usual in that genus. The narrow

58 INSECTS OF SAMOA.

head is another common feature, as-are also the close proximity of the ocelli

and the sudden dip of the crown, so that the median ocellus looks directly

forward. The meracanthus resembles closely that of Sawda froggatti Dist. It

may be noticed that Sawda is an Austro-Malayan genus, with one species (known

only from the female) also in Fiji. The present form could perhaps have been

derived from a Sawda-like immigrant in Samoa.

2. Moana expansa, sp. n. Figs. 1-3, 22.

Male: dull olivaceous brown (type probably faded). Frons, sides of

abdomen, and legs somewhat paler. A little scattered pale decumbent

pubescence on thorax and abdomen, but no hairs. Ocelli edged with blackish.

An indistinct paler median longitudinal stripe on pronotum. Mesonotum

shining, with two narrow black longitudinal stripes on each side of disc, the

Text-ric. 2.—Moana expansa, last nymphal Trext-Fic. 3.—Moana expansa, abdominal

instar, fore femur. extremity of last nymphal instar

of male.

inner pair impressed and about two-thirds length of outer pair, which nearly

reach cruciform elevation. Tergites II-VII smudged with blackish centrally,

and II—-VIII laterally also. Tegmina hyaline, the veins brownish, darker

distally.

Crown (including that part of frons visible dorsally) a little longer than

basal width between eyes, and equal in length to dise of pronotum without

CICADIDAE. 59

posterior depressed margin. Eyes very large. Posterior margin about one-

fourth total length of pronotum. Opercula rounded apically, barely longer

than meracanthus, widely visible in dorsal view. Fore femora weakly armed.

Hind tibiae with five non-apical spines. (Hypandrium missing in type.)

Lateral projections of pygophor short, blunt, emarginate dorso-apically.

(Rostrum and most of legs missing in case of type.)

Length to tip of VIIIth tergite 25-3 mm., tegmen length, 43-3 mm., greatest

width of tegmen (about halfway), 15-6 mm.

Male nymph, last instar: Eyes very large, antennae with 8 segments, of

which I-IV have the usual few very large setae, while the rest are densely and

evenly clothed with numerous small bristles. The tegmen pads show distinctly

the strong and much curved Cu, and the weak M stem alongside it. Fossorial

fore-legs with femora as figured. Pygophor ends in a typical median tergal

spine, which is, however, delimited by a furrow shown dotted in the figure.

Length 24-0 mm. (Length of head and thorax added to that of the abdomen,

to avoid curve.)

Upolu: Lanutoo, 1 3, more or less fragmentary, taken from a spider’s

web ; skilfully mended by Mr. China; no date (Hopkins) ; Malololelei, exuviae

of one last instar g nymph collected in rain forest at 2,000 feet, 26.iv.1924

(Bryan).

I have felt very chary of erecting a new genus on such poor material, but

when one considers how many new Orders and lesser groups are founded on far

less complete fossil insects, the objection ceases to have weight. The genus is

well characterised, and the species should be recognisable from the above

description.

The nymph, which is in perfect condition, is as aberrant as the imago.

In most cicada nymphs known to me (e.g. Platypleura, Henicopsaltria, Dicero-

procta, Odopoea, Magicicada, Melampsalta, Baeturia, Tettigarcta), the antennal

segments, even to the apical one, are supplied with a relatively small number

(2 or 3 up to about 6 per segment) of very large setae, sometimes as long as the

segment itself, whereas in the present species these are replaced on segments

V-VIII by numerous small bristles.

60 INSECTS OF SAMOA.

Subfamily TIBICININAE Dist.

Genus Barturta Distant, 1892.

Type Cicada conviva Stal.

3. Baeturia exhausta Guér. Figs. 5-9, 11-17, 19-21.

Distant, Syn. Cat. Hom. Cicad., p. 157, 1906.

Cicada exhausta Guér., Voy. “ Coquille,” Zool., 11, p. 181 (1838), pl. x, fig. 6 (1831).

C. hastipennis Walk., List Hom. Brit. Mus., Suppl., p. 30, 1858.

Dundubia parabola Walk., Ins. Saund. Hom., p. 6, 1858.

Savai: Safune, up to 4,000 feet in rain forest, 4 gg, 1 9, 2 exuviae, v. and

xi. (Buxton, Hopkins, Bryan).

Upolu: Apia, Malololelei, Aleipata, Vaea, up to 2,000 feet, 14 gg, 25 99,

3 exuviae, every month except 1. and x. (various collectors).

Tutuila: Pago Pago, Fagatoga, Amauli, 8 §g, 11 99, i.., UL, ix. (Steffany,

Judd, Swezey, Wilder).

Manua: Ofu, Tau, 3 3g, u. (Judd).

Samoa (island not specified): 2 9g, 5 99, ui., iv. (Tate, O'Connor, and

collector unknown—Brit. Mus.).

Total Samoan material: 31 34, 42 99, 5 exuviae (last instar).

There are two abundant and widespread Austro-Malayan species of Baeturva,

which differ from the other species known to me in the blackish speckling of

their pale ground colour. These two, B. exhausta Guér. and B. conviva Stal,

have sometimes been considered only doubtfully distinct (Kirkaldy, Haw. Sugar

Planters’ Exp. Sta. Entom. Bull., 12, p. 8, 1913). The characters on which

they are usually separated are the greater average size of B. exhausta, and the

extension of its tegminal cell R; (3rd apical cell) basad of cell Ry (1st apical

cell), whereas in B. conviva the bases of these two cells are opposite. On these

two characters the Samoan material all agrees with B. exhausta.

Save for the Samoan extension of B. exhausta, the range of these two forms

seems practically coincident. Judging from the above macroscopic criteria there

are in the British Museum examples of both from Buru, Ceram, Amboina and

New Guinea. There are specimens of B. conviva only from Doré, Timor, Mysol,

Batchian and Duke of York I. (Bismarck Arch. ?) ; and of B. exhausta only from

Gilolo, Torres Strait and Samoa. Size is at best an untrustworthy character,

and in examples from several Austro-Malayan islands, notably Buru, the vena-

tional distinction between the two forms also breaks down. In the British

Museum there are two males from the same locality in Buru, taken at the same

CICADIDAE. 61

time, and almost identical in other respects, but with the base of cell R; basad

of cell Ro in the one, and distad in the other. The apical venation in Cicadidae

is not very generally constant in details, although in the 73 Samoan examples

this particular character holds. Unfortunately the type of neither species is

available for study. The male external genitalia show certain variations, both

in the aedeagus and in the copulatory claspers of the Xth segment, but at least

in the two males from Buru already mentioned (figs. 6, 7, 12, 13) these are not

oe sie

Text-Fies. 4-9.—Fig. 4, Baeturia conviva Stal, Ceram, aedeagus, lateral view; fig. 5, B. ex-

hausta Guér., type of Dundubia parabola Walk., aedeagus, lateral view ; fig. 6, B. exhausta

Guér., (example from W. Buru with venation of B. conviva), aedeagus, lateral view ; fig. 7,

B. exhausta Guér., (example from W. Buru with normal venation), aedeagus, lateral view ;

fig. 8, B. exhausta Guér., Samoan example, aedeagus, lateral view; fig. 9, B. exhausta Guér.,

(another specimen from Samoa), aedeagus, lateral view.

correlated with the venational differences. On characters presented by the

genitalia these two males belong to B. exhausta. Figs. 4 and 10 show the corre-

sponding parts in what we must provisionally regard as a typical B. conviva,

to be contrasted with figs. 5 and 11, drawn from Walker’s type of Dundubia

parabola, which, with Distant, I consider as synonymous with B. exhausta.

The other figs. (8, 9, 14-17) illustrate the variation among the Samoan material.

If the specimen of B. conviva dissected by me is really typical, then this species

may perhaps be regarded as distinct owing to the longer aedeagus and accom-

62 INSECTS OF SAMOA.

panying minor differences in this organ and in the shape of the claspers. On the

Text-Fies. 10-17.—Fig. 10, B. conviva Stal,

Ceram, left clasper (Xth segment) ; fig. 11,

B. exhausta Guér., type of D. parabola

Walk., left clasper (Xth segment) ; fig. 12,

B. exhausta Guér., (example from W. Buru

with venation of B. conviva), left clasper

(Xth segment) ; fig. 13, B. exhausta Gueér.,

(example from W. Buru with normal

venation), left clasper (Xth segment) ;

fig. 14, B. exhausta Guér., from Samoa, left

clasper (Xth segment) ; fig. 15, B. exhausta

Guér., (another specimen from Samoa,

Apia), left clasper (Xth segment) ; fig.

16, B. exhausta Guér., (still another speci-

men from Samoa, Apia), left clasper

(Xth segment) ; fig. 17, B. exhausta Guér.,

Samoan example (Savaii), left clasper

(Xth segment).

basis of macroscopic and microscopic

characters it is evident that we are deal-

ing with one polymorphic form, com-

parable with Metrosideros villosa auctt.

among the Pacific Myrtacae. To settle

the question it will be necessary firstly,

of course, to examine the respective

types, and secondly to study series

from the different islands comparable

with the extensive one from Samoa

that I have been privileged to ex-

It seems to me very likely

that material from more numerous

intermediate stations would yield still

more annectent examples than we have

at present. In the meantime B. conviva

is kept doubtfully distinct, and the

Samoan forms are regarded as belonging

to B. exhausta.

mental variation in genitalia in the

genus, the aedeagus of an undoubtedly

distinct species, B. famulus Dist., is

amine.

To show more funda-

represented in fig. 18.

The type of Cicada hastipennis

Walk. is a female which agrees specifi-

cally with D. parabola, and thus pre-

sumably with B. exhausta.*

The nymph of Baeturia exhausta.

—As pointed out on other occasions,

the last nymphal exuviae of cicadas

make beautiful objects of study. In

the present species the antennae have

9 segments, including a very minute

* In view of the above discussion, the Baeturia species of Buru are of the greatest interest.

Schmidt (Tvreubia, 7, p. 222, 1926) records from the island in question B. conviva, B. exhausta,

CICADIDAE. 63

apical one. These segments are supplied, as usual, with a few setae, up to half

a dozen on a segment, and sometimes as long as the segment itself. Between

these large setae the surface is bare of ordinary hairs. The fore femur and the

extremity of the abdomen in the last instar male nymph are shown in figs. 19, 20.

Length (length of head and thorax added to that of abdomen) 18-8 mm.

Trxt-Fic. 18.—B. famulus Text-Fic. 19-22.—Fig. 19, B. exhausta Gueér., last

Dist., aedeagus, lateral nymphal instar, fore femur; fig. 20, B. exhausta

“view. Guér., abdominal extremity of last nymphal instar

of male; fig. 21, B. exhausta Guér., apical antennal

segments of last nymphal instar of male; fig. 22,

Moana expansa, apical antennal segments of last

nymphal instar of male.

One male specimen of B. exhausta from Apia (Buxton and Hopkins) has a

mass of hardened adhesive matter clogging its face and mouth-parts. It bears

the highly interesting explanatory label, “‘ The value of latex to plants! This

cicada tried to suck Carica papaya.”

B. bicolorata Dist. and B. schulzi, sp. nov., but, from his notes based on badly-preserved material

I doubt whether the third species is correctly recorded. His B. schulzi is said to be related to

B. viridicata Dist., of New Guinea, but judging from the description it is evidently much more

typical. The type of B. viridicata has almost opaque tegmina with the ambient vein almost

coincident with the margin, and greatly reduced opercula, which reach only half-way along the

meracanthus. In these three respects B. schulzi would seem more like B. exhausta and B. conviva.

Schmidt's new genus, Toxopeusella (I.c., p. 224) is apparently well-founded, although the geno-type,

Cicada stigma Walk., is represented in the British Museum only by the original female. The

common stem from the basal cell of the tegmen is not, however, M plus Cu as stated by Schmidt,

but M plus Cu, only. The statement that fore and hind wings are in 7’. stigma “ quergerippt ”’

and in Baeturia not, is incorrect, as an examination of B. exhausta and B. conviva will show, though

this character is certainly more marked in 7’. stagma.

TW. 2 2

64 INSECTS OF SAMOA.

A female example (Apia, 11.1924, Buxton and Hopkins) has a large piece

bitten out of the base of the abdomen, and was taken from a large introduced

wasp, Polistes macaensis which had captured it. Vespids are also known as

enemies of cicadas in North America (Davis).

“ Dasypsaltria maera”’ Haupt = Platypleura dwisa (Germ._).

In 1917 Haupt (Stett. Ent. Zeit., Bd. 18, p. 303, fig. 1) erected under the

name Dasypsaltria, a new monotypic genus to receive D. maera, a supposed

new species believed to have been collected in Samoa. On 7th June, 1926,

Herr Haupt was so good as to write to me regarding this species as follows :—

“Tn meiner Dasypsalirva maera mochte ich bemerken, dass ich da getiiuscht

worden bin. Sie gehért zu der stark varnerenden Platypl. divisa Germ., was ich

aber wegen des etwas abnormen Pronotums leider zu spit erkannte. Getiaiuscht

wurde ich auch durch die Herkunfts-Angabe. Einer unserer Kolonial Beamten

hatte das Tier in Stid-Afrika erbeutet, reiste von dort nach Samoa und sandte

es von dort zur Bestimmung nach Halle.” Dasypsaltria is thus a synonym of

Platypleura.

In the meantime, unfortunately, Kato (Trans. Nat. Hist. Soc. Formosa, 17,

p- 210, 1927) has described a new Formosan cicada as Dasypsaltria formosana.

CICADIDAE. 65

LIST OF TEXT-FIGURES.

(Corresponding parts shown at similar magnification ; hairs and setae omitted.)

for)

“J

21.

22.

Moana expansa g. et sp. n., tegmen, A. J. E. Terzi del.

Moana expansa, last nymphal instar, fore femur.

Moana expansa, abdominal extremity of last nymphal instar of male.

Baeturia conviva Stal, Ceram, aedeagus, lateral view.

. B. exhausta Guér., type of Dundubia parabola, Walk., aedeagus, lateral view.

. echausta Guér., Bara, W. Buru (example with venation of B. conviva), aedeagus,

lateral view. -

. exhausta Guér., Bara, W. Buru (example with normal venation), aedeagus, lateral

view.

. echausta Guér., Apia, Samoa, aedeagus, lateral view.

. echausta, Guér., Apia, Samoa (another specimen), aedeagus, lateral view.

. conviva Stal, Ceram, left clasper (Xth segment).

. echausta Guér., Bara, W. Buru (example with venation of B. conviva), left clasper

(Xth segment).

. exhausta Guér., Bara, W. Buru (example with normal venation), left clasper

(Xth segment).

. echausta Guér., Apia, Samoa, left clasper (Xth segment).

. echausta Guér., Apia, Samoa (another specimen), left clasper (Xth segment).

. B. exhausta Guér., type of D. parabola, Walk., left clasper (Xth segment).

. B. exhausta Guér., Apia, Samoa (still another specimen), left clasper (Xth segment).

. B. exhausta Guér., Savaii, Samoa, left clasper (Xth segment).

. B. famulus, Dist., aedeagus, lateral view.

. B. exhausta Guér., last nymphal instar, fore femur.

. B. exhausta Guér., abdominal extremity of last nymphal instar of male.

B. exhausta Guér., apical antennal segments of last nymphal instar of male.

Moana expansa, apical antennal segments of last nymphal instar of male.

- AQUATIC AND SEMIAQUATIC HETEROPTERA.

By Tetso Hsaxt.

(With 6 Text-figures.)

ALTHOUGH a few representatives of this group of insects have been described

from material collected in Fiji, the Marquesas Is., New Caledonia and the Society

Is., none have yet been recorded from Samoa.

In the present paper ten species, representing four families, are mentioned

or described. All belong to genera typical of the South Pacific region, but they

include five new species, some of which may prove to be endemic.

Unless otherwise stated, all the specimens were collected by Messrs. P. A.

Buxton and G. H. Hopkins.

VELIIDAE.

Microvelia Stal.

Besides those occurring in Australia, three species of this genus, Mvcrovelia

oceanca Distant (New Caledonia), M. pacifica Kirkaldy (Fiji), and M. prompta

Cheesman (Tahiti), are known to exist in the South Pacific Islands. Another

new species is now added to the fauna.

1. Microvelia samoana, sp. n. ‘Text-fig. 1.

6 2. Black, covered with grayish pubescence. Head black, lateral portions

of vertex along the eyes brown, pubescence whitish along the median longi-

tudinal line. Eyes black, shining. Antennae dark brown, apical segment

darker. Rostrum dark brown, with the extreme apex black. Pronotum black,

with a conspicuous brown band along the anterior margin where the pubescence

is pale brown. Dorsal and ventral surfaces of meso- and metathorax, and of

abdomen totally black, connexivum sometimes slightly brownish. Legs brown,

with the apical one-third to two-fifths of femora, tibiae and tarsi much darker

than the rest of femora, trochanters and coxae.

68 INSECTS OF SAMOA.

Size, small. Body elongate, lateral margins roughly parallel, covered with

coarse pubescence and punctures. Vertex conically produced anteriorly,

rounded at the apex. Three or four pairs of sensory pits along the lateral

submarginal areas; the apex with long setae. Eyes much rounded laterally,

agglomerate. Antennae slender, first

segment stout, slightly curved out-

wardly, slightly thickened at the

middle ; second, three-fourths the

length of first, thinner than the latter,

a little thickened towards the apex ;

third very slender, nearly as long as

first ; fourth much the longest, twice

as long as second, one and a _ half

times as long as first, thickened im

the middle. Ratio of the antennal

seoments—12: 9:11:18. Rostrum

reaching the anterior coxae, second

segment (in reality this may be the

third) much the longest. Pronotum

transverse, both anterior and posterior

margins shallowly sinuate posteriorly,

lateral margins slightly rounded, con-

vergent anteriorly ; a more or less dis-

tinct submarginal depression along the

posterior margin; meso- and meta-

notum together about half as long as

pronotum. Legs moderately slender,

covered with setose hairs, femora moderately thickened in the middle; anterior

tibia about three-fourths of femur, tarsus long, a little longer than half the

length of tibia; intermediate femur and tibia nearly equal in length, tarsus

about half as long as tibia, two segments of equal length ; posterior tibia longer

than femur, slender, tarsus short, two segments of equal length. First four

dorsal abdominal segments subequal in length, fifth a little longer than fourth,

sixth nearly as long as fourth and fifth taken together. Connexivum obliquely

erect in male, turning over the dorsal surface of abdomen in female, in which the

dorsal surface of the last four segments is scarcely visible.

Text-Fie. 1.—Microvelia samoana Esaki,

sp. By, 6:

AQUATIC HETEROPTERA. 69

Length of body: ¢ 1-6 mm., 9 1:7 mm.; breadth of body: ¢ 0:6 mm.,

2 0-7 mm.

Upolu: Mulifanua, type 3, type 9, 2 ¢ paratypes, x.1925, in marsh.

This species is smaller than Microvelia prompta Cheesman and larger than

M. oceanica Distant.* From the former M. samoana Esaki differs also in the

stouter shape of the body and the much narrower connexivum. From the

latter it differs in the ratio of the antennal segments.

GERRIDAE.

Limnogonus Stal.

Three closely allied species of this genus occur in the Pacific Islands. These

are :

Lamnogonus fossarum (Fabricius), type locality, E. India.

Lamnogonus discolor (Stal), type locality, Tahiti.

Lamnogonus luctuosus (Montrouzier), type locality, New Caledonia.

Lamnogonus nymphae (Ksaki), of Formosa, can be synonymised with L.

fossarum (Fabricius), and L. lineatus (Carpenter), of Murray Island, may be

synonymous with L. discolor (Stal). The type (¢) of L. lineatus (Carpenter)

is in the British Museum ; with that exception I have not yet had the oppor-

* Hale (Records S. Austr. Mus., Adelaide, iii, p. 208, 1926) identified an Australian Microvelva

as M. oceanica, but his species is quite distinct from WM. oceanica Distant, and is apparently new.

It may be characterised as follows :

Microvelia halei, sp. n.

$2. Differing from Microvelia oceanica Distant in the following characters :

Larger size: Length of body in apterous form ‘‘ 1-66 mm. to 2 mm.,” while in the apterous

form of M. oceanica, the body measures 1-51 mm. in the 3, and 1-65 mm. in the 9. These measure-

ments were made from the cotypes of WM. oceanica Distant in the British Museum. Distant’s

original description (Sarasin and Roux, Nova Caledonia, Zool., i, pt. 4, no. 10, p. 385, 1914) was

based only on the winged form, which measures “2 mm.,” though the author gave figures of

both forms.

Different ratio of the antennal segments: Hale describes the antennae of M. oceanica Hale,

nec Distant, as follows: “ first segment nearly one-fourth longer than second, subequal in length

to third and about three-fifths as long as fourth, which is more than twice as long as the second.”

In the true M. oceanica the ratio is 10:8:10:21 and 11:9:11:23 in g and Q respectively.

Thus in the latter species the last segment is considerably longer, in comparison with the other

segments, than in M. halei, in which it is much less than twice the length of the third segment.

Reference should be made to the full description and figures given by Hale (loc. cit.).

70 INSECTS OF SAMOA.

tunity of studying the types of these species. It is therefore impossible to

identify the species correctly, since the original descriptions are all insufficient

to distinguish one from another. For the time being, therefore, I have identified

them with three distinct species occurring respectively in the type localities.

A common Indian species, which is also widely distributed over the Malay

Archipelago, the Philippine Is. and Formosa, has been selected as probably

identical with ZL. fossarum (Fabricius); the only Tahitian species of which

there are examples in the British Museum has been regarded as representing

L. discolor (Stal); and a New Caledonian species has been identified as L.

SAO

Text-Fic. 2.—Ventral view of the genital segments of Limnogonus-species, semi-diagrammatic.

a, Limnogonus luctuosus (Montrouzier), ¢; 6, 9. 6 Limnogonus pacificus Esaki, sp. n., 3;

d, 2. e, Limnogonus fossarum (Fabricius), 3; jf; &.

luctuosus (Montrouzier). When the types of the species in question are

examined it is possible that some alterations will have to be made. Of these

three species, one occurs in Samoa.

2. Limnogonus luctuosus (Montrouzier). Text-fig. 2, a, b.

Gerris luctuosa Montrouzier, Ann. Soc. Linn. Lyon, xi, p. 242, 1864; Distant, Sarasin and Roux,

Nova Caledonia, Zool., i, pt. 4, no. 10, p. 384, 1914.

Upolu: Laulu, 1 9, 21.1.1925.

This species was hitherto only known to occur in New Caledonia.

AQUATIC HETEROPTERA. 71

3. Limnogonus pacificus, sp. n. Text-fig. 2, c, d.

3 2. Very closely allied to Limnogonus fossarum (Fabricius) and its allies,

differing only in the structure of the genital segments of both sexes, except that

the female is proportionally much stouter in shape than the male.

The differences in the genital segments of the two species (better shown in

text-fig. 2, ¢, d, e, f) are indicated in the subjoined tabular statement.

L. pacificus, sp. n. L. fossarum Fabricius.

S$. Posterior ventral margin of sixth G. Posterior ventral margin of sixth

abdominal segment sinuate on each side of abdominal segment deeply excavated in middle

middle line (see text-fig. 2, c). _ line, thus forming a parabola (text-fig. 2, ¢).

[The figure is made from a specimen from

Bor Ghat, India. The shape of this sinuation

seems variable to some extent, but it is never

as in L. pacificus.|

Posterior ventral margin of first genital Posterior ventral margin of first genital

segment distinctly pointed in the middle. segment slightly sinuate, not at all pointed in

the middle. Second ventral genital segment

broader, lateral margins convergent posteriorly.

9. Abdomen and connexiva much broader ; 9. Last abdominal segment: less reflexed

sternite of last abdominal segment much more dorsally, forming three equal teeth seen from

reflexed dorsally. venter.

All the specimens of L. pacificus in the collection are apterous. Pronotum

protruded posteriorly, covering a part of mesonotum, as in the apterous form

of the allied species. Second and third abdominal tergites in female with

bluish-gray pubescence. Antennae similar to those of L. fossarum, the first

segment much the longest, the remaining three segments subequal in length :

the exact ratio shows a slight variation to some extent.

Length of body: 3 8-0-8-5 mm., 9 8-5-9 mm. ; breadth of body: ¢2mm.,

° 3 mm.

Upolu: Malololelei, 2,000 feet, type gy 1., v.1924; Apia, 2 99 (including

type 9), 9.1v.1924, 1 3 paratype, 25.1v.1924; Mulifanua, 1 9, 17.v1.1925.

4. Limnogonus buxtoni, sp. n. Text-fig. 3.

The apterous form is the only one represented in the collection. Males

much smaller than females.

3g. Fusiform. General markings similar to those of the other species of

the genus, but the insect is more or less thickly covered with minute golden

72 INSECTS OF SAMOA.

pubescence, partially shining on pronotum and dorsal surface of abdomen.

Head black above, with a pale yellowish brown U-shaped marking and a small

spot just in front of each eye, which is confluent with the pale yellowish brown

under side of head. Eyes dark brown, shining. Antennae dark brown.

Rostrum pale yellowish brown, except extreme apex, which is black. Pronotum

black, lateral and postero-lateral margins, two spots on the anterior area, and

a stripe along the median longitudinal line except the anterior part pale yellowish

Cc d

Text-ric. 3.—Limnogonus buatoni Esaki, sp. n. a, 3, dorsal view; 6, antenna; c, dg, genital

segments, ventral view, shown upside down; d, the same of 9.

brown. Dorsal surface of meso- and metanotum, and of abdomen black, with

a more or less distinct stripe along the median line, pale yellowish brown ; in

dark brown, anterior femur paler. Sides and under side of body pale yellowish

brown, with the lateral area of prothorax, a small spot on pro-acetabulum,

lateral stripes on mesothorax, a very small spot at the end of meso-acetabular

suture, and a large spot on mego- and meta-acetabulum, black. Sides of abdomen

dark brown, or a dark brown spot on each segment.

yes much rounded exteriorly, distinctly but not much emarginate interiorly.

Three pairs of very long sensory setae along the submarginal line on vertex

(easily visible in profile). Antennae very long and slender, first segment the

AQUATIC HETEROPTERA. 73

stoutest and slightly curved near base; second and third segments equal in

length ; fourth a little longer than first or subequal to it. Hind margin of last

(sixth) abdominal sternite roundly sinuate, forming an arc, genital segments

much rounded at the apex (see text-fig. 3).

2. Similar to male, but much larger. Fourth segment of antennae some-

times slightly shorter than, generally subequal to first segment in length. Last

(sixth) abdominal sternite truncate at apex, without tooth-like process.

Text-Fie. 4.—Limnogonus hopkinsi Esaki, sp. n. @, antenna: 6b, ¢ genital segments, ventral

view ; ¢, the same of 9.

Length of body: ¢4mm., 26mm. ; breadth of body: $13 mm., 2? 2mm.

Upolu: Apia, type g, type 2, 3 5 paratypes and 1 @ paratype, 5.v1.1924 ;

Vailima, 1 gf, 1 9, 20.11.1925.

This interesting species is unlike any other known member of the genus

Limnogonus owing to the striking difference in size between the sexes, the shape

of the last abdominal and genital segments, and the considerable length of the

last antennal segment, which is the longest of all in the male. With the excep-

tion of some oceanic forms, the sexual difference in size is not so striking in other

members of the Gerris-group. Loamnogonus hopkinsi, sp. n., described below—a

much larger species—exhibits a similar sexual dimorphism in the matter of size.

5. Limnogonus hopkinsi, sp. n. Text-fig. 4.

6. Apparently very similar to the foregoing species, except in size. The

description of the colour and markings of L. buxtoni Esaki will serve also for

the present species. The 3 of this species is about as large as the 9 of L. buxtons,

74 INSECTS OF SAMOA.

while the 2 of the former is considerably larger than the male. Among the

material collected, there is a slight variation in size and coloration. The

specimens taken in Savai are much darker than those obtained in Upolu. In

the latter material the brown margins of the pronotum are sometimes much

more widened at the apex.

First segment of antennae much the longest, second and fourth subequal,

or the former a little shorter than the latter ; third, the shortest ; fourth, unlike

that in L. buxtoni, always much shorter than the first.

Genital segments of both sexes very similar to those of LZ. buxtont as shown

in the figures.

Length of body: ¢ 5-6 mm., 2 9-10 mm.; breadth of body: ¢2mm.,

O38 mm;

Upolu: Malololelei, 2,000 feet, type g, type 2, 3.g and 2 2 paratypes,

4.v.1924; 1 g, l.v.1924; 6 dg, 6 OY, 14-30.v1.1924. Savaii: Safune, rain

forest, 2,000-4,000 feet, 4 fg, 3 29, 5.viii.1924 (Bryan).

It appears probable that this species is confined to the mountain streams ;

L. buxtom occurs at lower levels.

6. Halobates princeps B. White.

Halobates princeps B. White, Rept. Voy. “‘ Challenger,” Zool., vii, pt. 19, pp. 39, 44, pl. 1, fig. 3, 1883.

Halobates alluaudi Bergroth, Rev. dEnt., xii, p. 204, 1893; Kirkaldy, Ann. Soc. Ent. France,

Ixvii, p. 103, 1899 ; Esaki, Ann. Mus. Nat. Hung., xxiii, p. 133, 1926 (Syn. nov.).

Halobates sericeus Matsumura (nec Eschscholtz), Thous. Ins. Japan, Addit., i, p. 97, pl. xi, fig. 8,

91: .

ae matsumurat Esaki, Psyche, xxxi, p. 117, pl. v, fig. D, 1924 (Syn. nov.).

Upolu: Apia, 1 3, 1 9, 2.11.1924, on surface of sea.

Bergroth, who described Halobates alluaudc from material from the

Seychelles, wrote (loc. cit., p. 205): “ H. princip: B. White affinis, sed tarsis

omnibus, praesertim posticis, multo brevioribus et trochanteribus mediis iner-

mibus bene distinctus.” Recently I have examined the type of H. princeps

B. White (a single female, in the British Museum), and have found an important

particular in which B. White’s statement and figure are incorrect. He writes

(loc. cit., p. 45): “ [the hind] tarsus about five-eighths of the length of tibia,”

but, in reality, the measurements afforded by the unique type are :—hind tibia :

tarsus = 43: 138, 2.e. roughly 3:1. This agrees quite well with the statement

of Bergroth (loc. cit., p. 205), in the description of H. alluaudi : “ [tibia postica]

tarso saltem triplo longiore,” which is the only difference between H. princeps

AQUATIC HETEROPTERA. 15

and H. alluaudi, except the armature of the middle trochanters. B. White

(loc. cit., p. 45), writes: “[the middle] trochanter armed with spines,” but

these “ spines” are not real spines, but stout setae, which are sometimes torn

off even during the life of the insect. I have also examined the type material

of H. alluaudi Bergroth in the Muséum National d’ Histoire Naturelle, Paris, and

am now quite sure that this supposed species is identical with H. princeps B.

White. Halobates matsumurar Ksaki is also synonymous with this species.

H. princeps is now known to be widely distributed over the Indian and

Pacific Oceans, as far as the Seychelles in the west, and the Pacific coast. of

Southern Japan in the north.

GELASTOCORIDAE.

7. Peltopterus macrothorax (Montrouzier).

Galqulus macrothorax Montrouzier, Ann. Sc. Phys. Nat., Lyon, (2), vii, pt. 1, p. 110, 1855.

Scylaecus macrothorax Stal, Of. Vet.-Akad. Forh., xviii, p. 201, 1861; Enum. Hemip, v (Svensk.

Vet.-Akad. Handl., xi, no. 4), p. 139, 1876. é

Peltopterus macrothorax Stal, Berlin, Hint. Zeit., vii, p. 408, 1863; Ofv. Vet.-Akad. Férh., xxvii,

p-. 706, 1870; Montandon, Bul. Soc. Sev. Bucuresci, viii, p. 779, 1899.

Tutuila: Leone Road, a single J, 8-5 mm. in length, 9.1x.1926 (Judd).

This species was previously known to occur in Woodlark I., Fiji, the

Philippine Is., N. Borneo, Aru, the Solomon Is., and Marianne or Ladrone Is.

In the British Museum collection there are, in addition to those from Woodlark I.,

Fiji, the Marianne and Philippine Is., specimens from Ke Dulan (in the Ké [= Kei]

Islands, 1 g, 1 9, 25.1x.1874, “‘ Challenger ” collection), Formosa (1 3, without

further data), and ‘‘ Madgico-sima, Corea ” * (3 29).

* These specimens from “ Corea” were collected by Arthur Adams during the voyage of

H.M.S. Samarang under Captain Sir EH. Belcher, C.B., R.N., and deposited in the British Museum

in 1845 with many other specimens. The three specimens are labelled “ Corea,” and only one

of them has a second label, ‘‘ Dry sand, Madgico-sima.”’ There is no doubt that these three were

collected at the same time. I believe that “‘ Madgico-sima ”’ is not an island near Corea, because

at the time of this voyage no Japanese name was officially used for the Corean geographical places

(“‘ sima’’ or shima means “island”’ in Japanese). On the other hand, the Yayeyama Islands in

the Loo Choo Group, lying between Okinawa and Formosa, have sometimes been called as “ Majico-

sima”’ or “‘ Mayico-sima.”’ It may be fairly safe to assume that this ‘‘ Madgico-sima ”’ is identical

with “ Mayico-sima.” If my assumption is correct, it is very interesting to find this typical

oceanic species on these islands (the chief islands are Ishigaki-jima and Iriomote-jima), which

are, together with Kotdsho (= Botol Tobago), zoogeographically much more closely related to

the Philippine Islands than to Formosa, in spite of their closer proximity to the latter than to the

76 INSECTS OF SAMOA.

NOTONECTIDAE.

Anisops Spinola.

This large genus, which is represented by three species in the collection,

has now become taxonomically one of the most difficult groups of water-bugs.

As Bergroth * remarked, “ Kirkaldy has published revisions of the different

genera + of this family, but his attempt to make them better known was a

failure. These insects offer good specific characters, but Kirkaldy was unable

to express the differences in words, and his descriptions are so vague and con-

fusing, and in so many cases positively wrong (especially in the comparative

measurements of the tibiae and tarsal joints) that they are practically almost

useless.”

The species mentioned below have been carefully determined by the study

of many types and of more recent literature of the group.

8. Anisops fieber1 Kirkaldy.

Anisops niveus Fieber (nec Fabricius), Abh. bihm. Gesel. Wiss., Prague, (5), vii, p. 484, 1852 ;

Matsumura, Trans. Sapporo Nat. Hist. Soc., i, p. 28, 1906 ; Esaki, Ent. Mag., Kyoto, i, p. 31,

1915.

Anisops fiebert Kirkaldy,{ Entomologist, zexiv, ip: 5; 190); Ween: Rant: Zet., xxi, ps 16a 1904

Distant, Faun. Brit. Ind., Rhynch., iii, p. 46, 1906 ; Hale, Record. S. Austral. Mus., 1, p. 400,

fig. 363, 1923; Arkw Zool., Stockholm, xvii, A, no. 20, p. 17, 1925; Esaki, Ann. Mus.

Nation. Hungar., xxiv, p. 188, 1926.

Anisops kuroiwae Matsumura, Ent. Mag., Kyoto, 1, p. 109, pl. in, fig. 38, 1915 (Syn. nov.).

former. It may also be pointed out here that a Malayan cicadid, Cryptotympana aquila (Walker)

was originally described by Walker (List Homop., i, p. 84, 1850) from a specimen from “ Corea.”

The type is still preserved in the British Museum, and the label refers the specimen to the same

source as the specimens of Peltopterus macrothorax from “* Corea’ mentioned above. It is, there-

fore, very reasonable to suppose that this specimen was also collected on “ Madgico-sima”’ or

Yayeyama Islands instead of Corea, though there are no further data on the label, since, judging

by the distributive range of this species (known to include the Malay Peninsula, Borneo, Sumatra

and Java), it is almost impossible to believe that the specimen was actually collected in Corea, as

has already been doubted by several authors (e.g. Moulton, Journ. Feder. Malay Stat. Mus., xi,

pp- 138 and 169, 1923). This species also has recently been recorded from Formosa, though I

have not seen the actual specimen (cf. Kato, Trans. Nat. Hist. Soc. Formosa, xvii, p. 23, 1927).

* Meddel. Goteborgs Mus. Zool. Afdel. 4 (Géoteborgs Kungl. Vetenskaps- och Vitterhetssamhdlles

Handlingar, xvi, no. 2), p. 15, 1914.

+ For Anisops, see Wien. Ent. Zeit., xxiii, pp. 111-119, 1904.—T.K.

+ Kirkaldy bestowed this new name upon 4. niveus Fieber, on the assumption that this

species was not identical with A. niveus (Fabricius) (Syst. Lnt., p.690, 1775). In the opinion of the

author in question, Notonecla ciliata Fabricius (Ent. Syst., Suppl., p. 52, 1798) and Anisops hyalinus

AQUATIC HETEROPTERA. 77

Upolu: Mulifanua, 2 3g, 3 99, 9.x1.1925.

Previously known to occur in India, Ceylon, Celebes, New Guinea, N.

Australia, Formosa, and Loo Choo.

: Anisops kurowwae Matsumura is identical with A. fiebert. Matsumura says

that A. kurowae is distinctly larger (“ deutlich grosser ’’) than A. fieber?, but the

former is “6-6-5 mm.” in length, whereas A. fiebert measures 4:9-7-2 mm.,

generally 6-5-7 mm. (Fieber’s measurements, “34” lines for $ and 9,

practically = 7 mm.). As a matter of fact I have seen many specimens from

Formosa and the Loo Choo Is., in both of which localities individuals forming

part of Matsumura’s typical series of A. kurovwae were obtained, but no differences

were observed between them and examples collected elsewhere.

9. Anisops cleopatra Distant. Text-fig. 5.

Anisops cleopatra Distant, Sarasin and Roux, Nova Caledonia, Zool., i, pt. 4, no. 10, p. 386, pl. xi,

fig. 8, 1914.

Upolu: Laulii, 5 specimens, 21.1.1925; Apia, 16 specimens, 1.1924, 3

specimens, 19.vi.1924; Malololelei, 4 specimens, 9.vi.1924; Mulifanua, 2

specimens, 9.x1.1925. Also 1 specimen, “ Samoa,’ 1920 (O’Connor).

‘This species was hitherto known only from specimens from New Caledonia.

The description by Distant, though accompanied by a beautiful drawing, is

very insufficient. The type is not to be found in the British Museum, which

however possesses the types of some other species described in the same paper.

But there are two specimens * from New Caledonia (J. J. Walker) in the

Fieber (Abh. béhm. Gesel. Wiss., Prague, (5), vil, p. 482, 1852) are identical with Anisops niveus

(Fabricius) (cf. Kirkaldy, Ann. Soc. Hnt. France, Ixviii, p. 106, 1899). All these theories, however,

were based on the “type” of Notonecta nivea Fabricius, which was said to be preserved in the British

Museum (Kirkaldy, Wren., Hnt. Zeit., xxii, p. 119, 1904). But although a Fabrician specimen,

which is identical with A. niveus auct., and was determined by Fabricius as “ nivea”’ is contained

in the British Museum (Banks’s Collection), it is not the type of A. niveus, because the species

was described from specimens in the collection of D. Koenig. The real types (two specimens)

are now kept in the Zoological Museum of the University of Kiel, and seem to represent a different

species from A. niveus auct. Even A. niveus auct., which is known to be widely distributed

throughout Southern Asia and Central and Southern Africa, seems to be a composite species, as

has already been suggested by Hutchinson (Ann. Mag. Nat. Hist., (10), i, p. 164, 1928). If the

Fabrician types and Fieber’s types in the Zoological Museum of the University of Berlin could be

carefully studied, some changes in the nomenclature of this genus would undoubtedly become

necessary.

* These specimens were identified by H. M. Hale as “ Anisops doris Kirkaldy,” but A. doris

is much larger than this species (“* g 83-9 mm., 9 8-9} mm.’—Kirkaldy, Wien. Ent. Zeit., xxiii,

78 INSECTS OF SAMOA.

collection, one of which at least agrees very well with Distant’s description and

figure, while the other is not quite identical in the colour of the scutellum. The

latter character is very variable in many species of the genus.

Comparing the specimens from Samoa with those from New Caledonia I have

identified them .as Anisops cleopatra Distant. I give below some average.

measurements of the specimens

to facilitate the identification of

the species. (30 units = 1 mm.)

Length of body: 35-5 mm., 9 6 mm.

Breadth of vertex at the anterior

margin viewed from above: ¢ 6

units, 2 8 units.

Breadth of synthlipsis: ¢ 3 units,

Anterior tibia: ¢ 31 units, 2 30 units.

Anterior tarsus: ¢g 20 units, 9 14+9

units.

Intermediate tibia: g 33 units, 2 33

units.

Intermediate tarsus: g 15+11 units,

Text-Fia. 5.—Amsops cleopatra Distant. a, anterior posterior tibia : 3.50 units, 253 units.

tibia and tarsus of ¢; 0b, the same of 9. Posterior tarsus: ¢ 19-121 units, 2

20-+24 units.

10. Anisops leucothea, sp. n. Text-fig. 6.

3g. Shining, pale sordid yellow or pale sordid brown like many other

species of Anisops. Eyes pale brown. Base of scutellum more or less obscurely

dark. Under side of abdomen black.

Head including eyes slightly broader than pronotum in ¢ and slightly

narrower in 2, with a short median groove in middle of vertex.* Vertex narrowed

posteriorly, more divergent anteriorly in 2 than in g. Breadth of vertex at the

anterior margin seen from above: synthlipsis = 7:5 in g, 9:5 in 9. Eyes

more prominent in g than in 9. Pronotum much longer than head seen above,

anterior margin more convexly sinuate than posterior margin. Scutellum

p. 112, 1904), and the eyes in the g, contrary to what is the case in the present species, almost

touch each other at the base (“am Grunde fast zusammenstossend,” Kirkaldy, loc. cit.).

* The term “ vertex” (Kirkaldy, 1904) is equivalent to “ notocephalon ”’ (Kirkaldy, 1897).

See Kirkaldy, Wien. Ent. Zeit., xxiii, p. 93, 1904.

AQUATIC HETEROPTERA. 7

broader than long, about one and a third times as long as pronotum in both

sexes. Shape of the anterior tibia and tarsus in both sexes is as shown in the

text-fig. 6. Average dimensions: (30 units = 1 mm.).

Length of body: § 8 mm., 28 mm.

Breadth of body: g 1-9 mm., 9 2-1 mm.

Breadth of vertex at anterior margin, seen

from above: ¢ 7 units, 9 9 units.

Breadth of synthlipsis: $5 units, 9 5 units.

Length of head: ¢ 25 units, 2 20 units.

Length of pronotum: ¢ 33 units, 2 31 units.

Anterior femur: 4 35 units, 2 34 units.

Anterior tibia: ¢ 44 units, 2 44 units.

Anterior tarsus: $27 units, 917-++10 units.

Intermediate femur: 9 48 units, 9 47 units.

Intermediate tibia: ¢ 45 units, 9 44 units.

Intermediate tarsus: 3 20-+14 units, 2 20

+15 units.

Posterior femur: ¢ 75 units, 2 73 units.

Posterior tibia: ¢ 63 units, 9 63 units.

Posterior tarsus: ¢ 20+25 units, 9 22

25 units.

TExt-FIG. 6.—Amisops leucothea Ksaki, sp. n.

a, anterior tibia and tarsus of g; 6, the

same of Q.

‘Upolu: Mulifanua, type 3, type 2, 6 33, 8 2°, paratypes, 9.xi.1925.

In general appearance, this species is very similar to Anisops assumilis

B. White, of New Zealand, but differs in having a shorter pronotum. The

following measurements are taken from the types of Anisops assiemilis B. White,

which are now preserved in the Perthshire Natural History and Antiquarian

Museum, Perth. (30 units = 1 mm.)

Length of body: $65 mm., 9 8 mm.

Breadth of vertex at the anterior margin seen above: ¢ 11 units, 2 9 units.

Breadth of synthlipsis: ¢7 units, 2 5 units.

Length of head: ¢ 25 units, 9 17 units.

Length of pronotum: 3 42 units, 2 33 units.

Anterior tibia: g¢ 40 units, 2 30 units.

Anterior tarsus: g 45 units, 2 19-++10 units.

In A. assimalis, the head and pronotum are comparatively much wider

in the § than in the 9, but there is apparently no distinct sexual difference in

the ratio between the breadth of the anterior margin of the vertex and the

synthlipsis, as in A. leucothea : the ratios are as follows :

A. assimilis : 11:7, 99:5.' A..leucothea: 67:5, 29:5.

Tis 2 3

80 INSECTS OF SAMOA.

LIST OF TEXT-FIGURES.

Text-fig. 1. Microvelia samoana Esaki, sp. n., 3.

» 2. Ventral view of the genital segments of Limnogonus species, shown upside down,

semi-diagrammatic.

a, Limnogonus luctuosus (Montrouzier), 3.

b, oe) > Q.

c, Lamnogonus pacificus Esaki, sp. n., 3.

d, 99 99 2.

e, Limnogonus fossarum (Fabricius), 3.

Ff; ” 9 eh :

. Limnogonus buxtont Esaki, sp. n. a, g, dorsal view; 6, antenna; c, 4, genital

segments, ventral view, shown upside down; d, the same of .

» 4. Limnogonus hopkinsi Esaki, sp.n. a, antenna; 6, ¢ genital segments, ventral view,

shown upside down; c, the same of 9.

» 5. Anisops cleopatra Distant. a, anterior tibia and tarsus of J; b, the same of 9.

» 6. Anisops leucothea Esaki, sp. n. «a, anterior tibia and tarsus of ¢; 6, the same of 9.

Geo

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INSECTS OF SAMOA

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SOIL

,, VILL.

Orthoptera and Dermaptera.

Hemiptera.

. Lepidoptera.

. Coleoptera.

Hymenoptera.

Diptera.

Other Orders of Insects.

Terrestrial Arthropoda other than Insects.

ist “The Wark will be pabtichcd at intervals’ in the foun of numbered fascicles.

i an individual fascicles may contain contributions by more than one

author, each fascicle will be so arranged as to form an iilearsl portion of one or

ae other oi the ae specified above.

INSECTS OF SAMOA

AND OTHER SAMOAN TERRESTRIAL

ARTHROPODA

“List of Fascicles issued to 23rd June, 1928 —

: Date Issued.

Insects of Samoa and other Samoan Terrestrial Arthropoda. ve I and eae

2 (in envelope). 1927, 4to. 6d. ee 26th February, 1927.

Part II. Hemiptera. : ee i Se

Fi ae 1. Tule By F. Mae: 25 text-figures. Paylide ( (Chermid). By

j rawford. 4 text-figures. C idide a t re

By F. Laing, MA, BSc. 3 cexthgares, Pp: 15) (927 eo Gd 8 25th June Waa

Fasc. 2. Cercopide. By V. Lallemand, M.D. 10 text-figures. Cicadide. By. ine

yers, Sc... 22 text-figures. Aquatic and Semi-aquatic ee sini hi Faso Be

sy Prof. Teiso Esaki. 6 text-figures. Pp. 47-80. 1928, 4to. a 6d. ? hinges 23rd June, 1928. —

Part III. LEepipoPTera. sash eee

Fase. |. Butterflies of S nd some neighbouring Island-groups. B GH py) ee Wa a

Hoskie MAU EE. Sol icaehoare and 4 Ae Pp. 1 en a} to, 5s. 9th April, 1927.

Fasc. 2. Micro-Lepidoptera. By Edward Meyrick, B.A., FRS. Pp. 65-116.

1927, 4to. 2s. 6d. 28th May, 1927.

Foie 3. Gomeride. (By Lone Be P t. FES, 2 textfgur dt plate. 5, Oa A era

‘Pp. 117-168. 1928, 40, Tae ule Es Dai March dee

Part IV. CoLEopTEra. — es

Fasc. 1. Carabide. By H. E. Andrews. 9 | Dytiscide. By A.

Zimmermann. 2 text-figures. Staphylinidee. y meron, M.B. 2 text- SAE a an

gures. Hydrophilide. By A. d Orchymont. | text-figure. Clavicornia and bre UE Ben’

-Lamellicronia. “By G. J. rows 13 text-figures. Pp. 1-66. 1927. 4to. 3s. 19th December, 1927.

Fasc. 2. _Heteromera, Bostrychoidea, Meecode a and Buprestide. ByK.G. Tier amese vie

Blair, B.Sc. 14 ee Elaterid, a H. van Zealuvenbere. 10.

text-figures. Melee z ee z). By ay Fleutiaux.. Cerambycide. By

hr. Aurivilli ae late. Brent idee. By R. Kleime. 4° text-figures. oF ara

Anthribide. By Kark Jordan, Ph.D. 11 eee Proterhinide.. ey, pS a) BP aaraaitint )

R.C. L. Perlans, D.Sc, F-R-S. Pp. 67-174. 1928. nee 3s. 25th February, 1928.

Part V. Hymenoptera.

Fasc. 1. Apoidea, Sphecoidea, and Vonact By R. IG; L. Perkin, D.Sc. ss

F.RS., and_L. Evelyn Cheesman, F-E.S., F.Z.S. 12 text-hgures. Larride. BY (ieee ant ae

By Francis X. Williams. 12 text-Agures, oe os Dr. F. Santschi. SH ss! vt

9 text-figures. Pp. 1-58. 1928, Ato. 5s. ae Dth February, 1928.

Part VI. Duprera. : eye

Fasc. 1 Streblide and N abi ‘By L. Fal 7 text-f Hy aye been

heed: By GF. Fave cide, By fe ae 1927, figures, eee 23rd July, 1927.

F 2. Nematocera. By F.W.Edwards, M.A. 20text-fisures. Cecid %

By ALF Bames BA, PRD. 4temhgures, Pp. 25-108 ee 23rd June, 1928.

Part VII. Orner OrbeErRS OF ace . Peaks :

F a a ae Hels ee oe eae era Gull, af Sent and Gyiicaiee 5 h

t t Lt-Col. F. 3 text- 4 en ian

Ped. 198 do, 2s 6 oe a | 28th May, 1927. kes

Fasc. 2. ance By St 13 Tillyard, Sc.D. (Cantab,), FR. Se pet i i Raw

By Rehards Baul EROE ELS. te ‘ ne AR 1928, to, ae

t xt T te thang

bd yeaa "23rd June, 1928,

Part VIII. TerrestRidL ARTHROPODA OTHER THAN INSECTS.

Fasc. 1. Isopoda Terrestria. By Harold G. Jackson, D.Sc. 2 plates. Scor-

ines ea. ee Eat: oy oe Parnes yee raster at ut

text-figur rine t rst. 2. text- = x AS

ry Ms ema aaa Rp TaN M IS G1 hy 23rd July, 1927.