Odonata

Compiled by D. E. Kimmins

The following species are represented in the collections of Odonata made by the 1934-35 and

1952 Expeditions. Odonata were not especially sought for, and numbers are consequently small,

but this list has been compiled to place on record what species were taken. Unless otherwise

stated, all were taken by Dr. F. W. Edwards. All the material has been identified by Miss. C.

Longfield.

ZYGOPTERA

Family Libellaginidae Laidlaw

Chlorocypha tenuis Longfield

UGANDA: Ruwenzori Range, Kilembe, 4500 ft., xii.1934-1.1935, I 9.

S.W. UGANDA: Kalinzu Forest, 25.i.1935 (T. H. E. Jackson), 1 3, 4 9.

Recorded Distribution: Uganda, Kenya.

Platycypha caligata (Selys)

UGANDA: Masaka, 13.ix.1934, 3 g, 1 9.

KENYA: Thika, 23.x.1934, 1 9.

Recorded Distribution: East and Central Africa.

Family Protoneuridae Tillyard

Elattoneura simba Martin

UGANDA: Ruwenzori Range, Semliki Forest, 2750 ft., Hot Springs, 28.viti.-1.1x.1952 (D. S.

Fletcher), 1 3.

Recorded Distribution: East Africa.

Family Coenagriidae Kirby

Enallagma subfurcatum Selys

UGANDA: Ruwenzori Range, Kilembe, 4500 ft., xii.1934-1.1935, 16 g, 5s 9; Mpanga (Kibale)

OLest, 25.1:1935, 2 6.

Recorded Distribution: Abyssinia, Eritrea, W. Darfur, Uganda, S. Rhodesia.

1-+(144) 43

44 Ruwenzori Expedition, 1952, Volume II

Enallagma elongatum Martin

UGANDA: Ruwenzori Range, Katamayo, 8000 ft., xii.1934-i1.1935, I d.

Recorded Distribution: S. Rhodesia to Kenya, Angola, Belgian Congo.

Enallagma long fieldae Fraser

UGANDA: Ruwenzori Range, Kilembe, 4500 ft., xii.1934-4.1935, I 9.

Recorded Distribution: Uganda.

Enallagma pseudelongatum Longfield

S.W. UGANDA: Kigezi District, Mt. Mgahinga, 8000 ft., 22-27.xi.1934, I d.

Recorded Distribution: Tanganyika, Kenya, Uganda.

Pseudagrion angolense Selys

UGANDA: Masaka, 13.xi.1934, I g, 1 @.

Recorded Distribution: Cape Province to Uganda and West Africa.

Pseudagrion gerstaeckeri Karsch

UGANDA: Masaka, 13.ix.1934, I 2; Ruwenzori Range, Fort Portal, 5000 ft., 4.xii.1934, 1 2. .

KENYA: Thika, 4500 ft., 23.x.1934, I 9.

Recorded Distribution: Central Africa.

ANISOPTERA

Family Gomphidae Rambur

Notogomphus dorsalis Selys

KENYA: Thika, 4500 ft., 23.x.1934, I ¢.

Recorded Distribution: East Africa.

Family Corduliidae Selys

Macromia sp.

KENYA: Thika, 4500 ft., 23.x.1934, I 2 (incomplete).

Family Libellulidae Latreille

Orthetrum caffram Burmeister

UGANDA: Ruwenzori Range, Kilembe, 4500 ft., xii.1934-4.1935, 18 g, 1 2.

KENYA: Aberdare Range, Mt. Kinangop, 9000 ft., 23-31.x.1934, I dg.

Recorded Distribution: S. and E. Africa.

Orthetrum guineense Ras

UGANDA: Masaka, 13.xi.1934, I ¢; Ruwenzori Range, Semliki Forest, 2850 ft., 22.viii-

3.ix.1952 (D. S. Fletcher), 2 3.

KENYA: Thika, 4500 ft., 23.x.1934, I @.

Recorded Distribution: C. Africa.

{

Odonata 4S

Orthetrum stemmale kalai Longfield

UGANDA: Ruwenzori Range, Semliki Forest, 2750 ft., Hot Springs, 28.viiil—1.ix.1952 (D. S.

Fletcher), 1 3.

Recorded Distribution: C. Africa.

Orthetrum microstigma Ris

UGANDA: Ruwenzori Range, Semliki Forest, 2850 ft., 22.viii—3.ix.1952 (D. S. Fletcher), 1 3.

Recorded Distribution: C. Africa.

Palpopleura lucia forma portia Rambur

UGANDA: Ruwenzori Range, Kilembe, 4500 ft., xii.1934-i.1935, 1 gd, 1 2; Semliki Forest,

2850 ft., 22.viii—3.ix.1952 (D. S. Fletcher), 1 3.

Recorded Distribution: Central Africa southwards.

Crocothemis erythraea Brullé

UGANDA: Kigezi District, Kanaba Gap, 7500 ft., 19.xi.1934, I 9.

Recorded Distribution: Throughout Africa.

Atoconeura eudoxia Kirby

UGANDA: Ruwenzori Range, Nyamgasani Valley, 8-9000 ft., xii.1934-1.1935 (D. R. Buxton),

2 $, 19; Namwamba Valley, 6500 ft., xii.1934-1.1935 (T. H. E. Jackson), 1 &.

Recorded Distribution: Uganda, Kenya, Belgian Congo.

Atoconeura biordinata pseudeudoxia Longfield

UGANDA: Ruwenzori Range, Bikoni Peak, Mobuku Valley, 7500 ft., 31-xii.1934, 1 3;

Mpanga (Kibale) Forest, 25.i.1935, I 3.

Recorded Distribution: Uganda.

Trithemis stictica Burmeister

UGANDA: Masaka, 13.xi.1934, I 9.

Recorded Distribution: Widespread in Africa.

Trithemis pluvialis Foerster

UGANDA: Masaka, 13.xi.1934, I .

_ Recorded Distribution: S. Africa, S. Rhodesia, Port. E. Africa, Belgian Congo, Angola.

Trithemis risi Longfield

KENYA: Thika, 4500 ft., 23.xi.1934, 1 2 (2 nymphs probably belong here).

S.W. UGANDA: Kigezi District, Kanaba Gap, 7500 ft., 19.xi.1934, I 9.

Recorded Distribution: Widespread in Africa.

— eee Oe

Trichoptera

By D. E. KIMMINsS

The specimens of Trichoptera, collected by Mr. D. S. Fletcher during his 1952 Expedition to the

Ruwenzori Range in Uganda, have added appreciably to our knowledge of the caddis-fly fauna

of this area. He visited localities different from those worked by Dr. F. W. Edwards’ 1934-5

Expedition and his collections were made at a different time of the year (July to September), Dr.

Edwards having been in the Ruwenzori region during the months of December and January.

_ These two factors have undoubtedly affected the composition of the present collection, and Mr.

_ Fletcher has taken examples of no fewer than thirteen species not represented in the collections

_ made by the 1934-5 Expedition. Of these, one genus, eight species and one subspecies are here

described as new, out of a total of twenty-two species represented in the present collection.

The relative numbers of species represented in the various families remains much about the

_ same as in the previous collection, the Leptoceridae still providing the greatest number of species.

It is interesting to note that, as remarked by Mosely (1939), there are still no records of the Poly-

centropodid genus Dipseudopsis from this area.

The types of all new species described in this paper are located in the British Museum (Natural

History).

RHYACOPHILIDAE

Synagapetus ungulatus exsectus ssp.n. (Figures 13 58D= 57)

RUWENZORI RANGE: Nyamaleju, 10,530 ft., 14-19.vii.1952, 4d; 4 2.

General appearance as in S. u. ungulatus Mosely (1939, p. 34), except that the white tip to the

antenna covers IO-II segments.

3 Genitalia. Of the general pattern of the nominate subspecies but differing in detail. The ninth

tergite is rather more deeply excised and impressed at the centre of its apical margin, the lateral

margins more sinuous. The tenth segment (lower penis-cover and membranous processes of

Mosely’s description) is rather more sinuous in outline from the side. The two thin, twisted pro-

cesses both appear to arise from the left-hand margin of the segment. Their form probably varies

in individuals. Clasper in side view deeper in relation to its length, its upper margin more humped,

apex with a wide, shallow excision. One strong tooth on lower inner surface beyond midway,

and a smaller one at the base, directed tailward, not inward.

Length of fore wing, 3, 5 mm., 2, 5-5 mm.

48 Ruwenzori Expedition, 1952, Volume II

Holotype ¢ (with abdomen mounted in Canada balsam), allotype 2 and paratypes pinned.

In the dried example, little difference can be seen between this and the typical form, apart from

the excised apex of the ¢ clasper. After clearing in KOH solution, other differences become

evident and seem of sufficient importance to warrant the separation of the Nyamaleju examples

as a subspecies.

PHILOPOTAMIDAE :

Wormaldia fletcheri sp.n. (Figures 4-5, p. 58)

RUWENZORI RANGE: Nyamaleju, 10,530 ft., 14-19.Vii.1952, I ¢.

Head and clothing fuscous. Antenna dark fuscous, with faint ochraceous annulations. Palpi

fuscous. Thorax fuscous, tegulae ochraceous, legs fuscous. Wings pale fuscous, fore wing with

very dark, almost piceous pubescence. Venation as in W. kyanus (Mosely).

3 Genitalia. The ninth segment is reduced above to a narrow, transverse band, the apical ventral !

margin excised at its centre. The tenth segment is long, broad at its base, tapering to a thin,

digitate apex; on each side near the base is a thin, tapering, blade-like spine. Cerci slender, about

three-quarters as long as the tenth segment. Penis long, cylindrical, membranous, with a thin, -

sclerotized stiffening rib beneath. Clasper two-segmented, segments of about equal length. The _

basal segment from above is wide at its base, divergent, tapering towards its apex. From the side

the upper margin is straight, lower excised. Terminal segment only slightly clavate from above,

from the side gently constricted about midway. Its inner apical surface is set with rows of short,

black teeth.

Length of fore wing, 3, 8-5 mm.

Type ¢ pinned (with abdomen mounted in Canada balsam). This species may be separated

from W. kyanus (Mosely) by the relatively shorter and less clavate clasper, which in dorsal view

is wider at its base, apex of basal segment not dilated internally, and by the thin, blade-like pro-

cesses of the tenth segment. From W. rufiventris Ulmer (described from a female) it may be |

separated by the presence of apical fork no. 4 in the fore wing and by its uniformly fuscous

colouring.

Chimarrha clara Mosely (1939, p. 31).

RUWENZORI RANGE: Nyamaleju, 10,530 ft., 14-19.vii.1952, I 9.

Chimarra clara (Mosely) |

Recorded Distribution: Ruwenzori.

Chimarra foliata sp.n. (Figures 6-8, p. 58)

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22.viii—3.ix.1952, I 3.

The unique male was in rather poor condition and has been made into a microscope preparation.

Little can be said of its general appearance except that it was blackish. Spurs 1.4.4. Fore wing

with forks nos. 1, 2, 3, and 5, anastomosis straight and white. Hind wing with Rx obsolete or

fused with Sc, apical forks nos. 2 and 5 only present.

Trichoptera 49

$ Genitalia. The ninth segment is membranous above, the upper angles of the sclerotized lower

part extended tailward in long, slender, caliper-like processes, their apices crossing. The tenth

segment is composed of two foliate lobes, flexibly attached to the ninch segment, quadrate from

above, surface undulating, each inner margin thickened and extended tailward in a slender, sinuous

finger. Cerci short, broad and laterally compressed, situated below the produced calipers of the

ninth segment. Penis long, curved, moderately stout at base, apex flattened dorso-ventrally,

forming an elongate triangle from above, its lateral basal margins deflexed, and with two

rounded dorsal humps. Clasper short and stout, subtriangular from beneath, quadrate from the

side, with an upwardly directed lobe at the base, and with the upper apical angle of the clasper

acute and curved inward.

Length of fore wing, 3, 4:5 mm.

Type d mounted in Canada balsam as a microscope preparation. This species differs from

C. georgensis (Barnard) and C. kabashana Marlier in the absence of apical forks nos. 1 and 3 in

the hind wing and in the form of the ¢ genitalia.

PSYCHOMYIIDAE

Paduniella ankya Mosely

Mosely (1939, p. 29).

RU WENZORI RANGE: Semliki Forest, 2850 ft., 22.vili-3.ix.1952, I g, 19.

Recorded Distribution: Ruwenzori.

PARECNOMINA, gen. nov. (Figure 9, p. 59)

Spurs 3.4.4. Maxillary palp with the basal segment short, the second about half as long again as

the basal, the third and fourth each about twice as long as basal, and the terminal segment about

as long as the other four together. In the fore wing, Rx is forked at its apex; apical forks nos. 1,

2, 3, 4 and 5 all present. In the hind wing, Sc and Rx are not fused near the apex; discoidal cell

present, linked by a cross-vein to Rx; apical forks nos. 2, 3 and 5 present.

Type-species. Parecnomina forcipata sp.n.

This genus, together with the Australian genus Ecnomina Kimmins, differs from the other

described genera of the Ecnominae in the presence in the hind wing of a closed discoidal cell and

of apical fork no 3. It differs from Ecnomina in the presence in the fore wing of apical fork no. 1

and in having fork no. 4 sessile. The discoidal cell in both wings is longer and narrower, and the

6 claspers are fused only at their extreme bases.

There are now five described genera in the Ecnominae, but Ecnomiella Mosely may possibly

be a synonym of Ecnomodes Ulmer, the chief distinction between them being the number of spurs

on the anterior tibia. This is not always a reliable generic distinction, and Mosely has already

accepted, within the genus Ecnomus McLachlan, species with two or with three spurs on the

anterior tibia.

50 -Ruwenzori Expedition, 1952, Volume II

KEY TO KNOWN GENERA OF Ecnominae

1. Hind wing with apical forks nos. 2 and 5; no discoidal cell ; : : ; : : 3

Hind wing with apical forks nos. 2, 3 and 5; discoidal cell present . : : : ; een)

2. Fore wing with all five apical forks present. : : é PARECNOMINA gen.n.

Fore wing with only apical forks nos. 2, 3, 4 and 5 preent : : . ECNOMINA Kimmins

3. Fore wing with Ry forked at apex : : ; : ; : . ECNOMUS McLachlan

Fore wing with Rx simple . : ; : : : : 3 : ; ; ; ; 4

4. Spurs 2.4.4. : : , : : : . : : : : . ECNOMIELLA Mosely

Spurs 3.4.4. : : : : : : : ; : E : . ECNOMODES Ulmer

Parecnomina forcipata sp.n. (Figures 9-12, p. 59)

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22.vili-3.ix.1952, 3 g.

Head dark brown, with piceous and golden hairs. Antennae fulvous, with fuscous annulations.

Palpi fulvous. Thorax dark brown, with blackish hairs. Legs fulvous, with fuscous pubescence.

Abdomen fuscous. Wings narrow, apices elliptical. Fore wing pale fuscous, pubescence fuscous,

with golden irrorations, membrane with whitish areas at arculus, anastomosis, at apex of thyridial

cell and along anterior branch of media. Hind wing smoky hyaline, with a whitish area at fork

of media and on r-m cross-vein, pubescence fuscous, scanty. In fore wing, apical forks 1, 3 and 5

with footstalks, 2 and 4 sessile. In hind wing all apical forks with footstalks.

3 Genitalia. The ninth segment is almost divided into tergite and sternite, the tergite narrow

at the sides, widening above into a triangle overhanging the base of the tenth segment. Ninth

sternite large, upper margin convex in side view, apical margin from beneath with a wide

V-shaped excision, within which arise the claspers. The tenth segment forms two elongate,

cercoid processes, each wide at the base in the side view, then abruptly narrowed, gradually

dilating to about midway, finally tapering to a rounded, up-curved apex. From above, each

process is slender, apex slightly clavate and setose; from the base, on the inner surface of each

process arises a short, toothed branch, triangular in lateral aspect. Penis long and slender, slightly

down-curved, on its upper surface at about midway bearing a number of long, slender, apically

directed spines. Clasper short, about half as long as sternite, triangular, with a hooked apex in

side view, parallel-sided, with an incurved apex in ventral aspect.

Length of fore wing, 3, 55 mm.

Type 3, mounted as a microscope preparation, and paratypes pinned.

HYDROPSYCHIDAE

Hydropsyche namwa Mosely

Mosely (1939, p. 23).

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.vili.1952, 3 dG; Ibanda, 4-6.viii,

20-21.Vili, 4-12.1x.1952, 3 dg, 19 9.

Recorded Distribution: Ruwenzori.

Trichoptera SI

Hydropsyche bwambana Mosely

Mosely (1939, p. 24).

RUWENZORI RANGE: Bundibugyo, 3440 ft., 22.viii-3.ix.1952, I g.

Recorded Distribution: Ruwenzori.

Hydropsyche wamba Mosely

Mosely (1939, p. 25).

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.viii.1952, 19 g, 10 9; Ibanda,

4700 ft., 20-21.Vvili, 4-12.ix.1952, 6 g, 3 9.

Recorded Distribution: Ruwenzori.

Hydropsyche sp.

RUWENZORI RANGE: Mohama River, 6700 ft., 13-16.viii.1952, 1 g (damaged).

Diplectronella afra Mosely

Mosely (1939, p. 202, 1939, p. 28).

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22.vili-3.ix.1952, 4 g, 1 9.

Recorded Distribution: Uganda (Kampala and Ruwenzori).

HYDROPTILIDAE

Ugandatrichia nigra Mosely

Mosely (1939, p. 37).

| RUWENZORI RANGE: Mahoma River, 6700 ft., 13—16.vili.1952, I g.

| Recorded Distribution: Ruwenzori.

LEPTOCERIDAE

| Athripsodes bifidus sp.n. (Figures 13-15, p. $9)

RUWENZORI RANGE: Ibanda, 4700 ft., 20-21.Vviii.1952, 2 3.

Head fuscous, with whitish hairs. Antenna fuscous, with whitish hairs on basal segment and

with a basal patch of white pubescence on the upper side of the remaining segments, becoming

progressively smaller. Palpi fuscous with sparse fuscous pubescence. Thorax fuscous, with

scattered whitish hairs. Legs fulvous, with ochraceous pubescence. Abdomen fuscous.

Fore wing pale fuscous, with mixed fuscous and whitish pubescence, probably rather denuded

in the type-series. Hind wing brownish hyaline, pubescence scanty and fuscous. In fore wing,

apical fork no. 1 and fourth apical cellule each about twice as long as its footstalk. Discoidal and

thyridial cells long, each one and a half times as long as its footstalk, the thyridial cell extending

more basal than the discoidal. In hind wing, apical fork no. 1 as long as, and fourth apical cellule

rather longer than, their respective footstalks.

*_(144)

52 Ruwenzori Expedition, 1952, Volume II

3 Genitalia. The ninth segment is bilobed at its dorsal apical margin. The tenth segment is

partly fused to the ninth, forming a deep, bifid hood, acute apically from the side; from above

it is rather laterally compressed, with a narrow excision between the two slightly incurving

branches. Cerci flattened, sub-triangular, welded to the tenth segment. Clasper long, slender,

bent abruptly upward at the base and then obliquely tailward and inward at about midway,

whence there arises a slender, articulated branch with a bifid apex, whose lower fork is rather

less acute.

Length of fore wing, J, 11-5 mm.

Type pinned, with apex of abdomen mounted in Canada balsam. In its comparatively simple,

two-branched clasper this species more resembles the European species of the fulvus-alboguttatus

group than it does most of the described African species of the genus. From A. asanus (Mosely)

it may be distinguished by its simpler tenth segment and the more slender claspers.

Athripsodes quadrispinus sp.n. (Figures 16-19, p. 60)

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16. vili.1952, I 3.

Head piceous, with fuscous hairs. Antenna fuscous, joints finely annulated with piceous, seg-

ments in basal half of antenna ochraceous at base. Palpi fuscous. Thorax piceous, hairs fuscous.

Legs pale fuscous. Abdomen fuscous.

Wings fuscous, pubescence dark fuscous. In fore wing, fork no. 1 with a very short footstalk,

fourth apical cellule about three times as long as its footstalk. Discoidal cell about twice as long

as its footstalk, thyridial cell about equal to its footstalk.

§ Genitalia. Dorsal apical margin of the ninth segment bilobed. The tenth segment forms a

short, deep hood, in dorsal aspect divided into two halves by a deep, narrow excision; each half

is roundly excised at its apex, so that the apical margin of the tenth segment from above shows

two pairs of processes. The inner, upper pair are acute in dorsal aspect, rounded from the side,

and the outer pair are truncate from above, rounded from the side. Cerci forming quadrate

plates, welded at their bases to the tenth segment. Penis moderately long, down-curved, with

two pairs of spine-like sheaths arising from its dorsal surface at the base. The inner upper pair is

about half as long as the other pair. Clasper short, broad at its base, with a sub-terminal, claw-like

branch beneath, which extends beyond the apex of the clasper. Within, at the base of the clasper,

is a short, setose branch. From the ventral margin of the ninth segment arises a pair of tapering,

spatulate lobes.

Length of fore wing, 3, 9:5 mm.

Type ¢ pinned, with apex of abdomen mounted in Canada balsam. In structure of genitalia,

this species resembles A. asanus (Mosely), also from Ruwenzori, but is amply distinguished by its

more hooded tenth segment, quadrate cerci, two pairs of penis-sheaths, different form of the

clasper and the spatulate ventral processes of the ninth segment.

Athripsodes varius sp.n. (Figures 20-22, p. 60)

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.viii.1952, 5 g, 1 9; Ibanda, 4700 ft.,

20-211, Vill. 1952, 2.2 ¢-

Head fuscous, with fuscous and pale ochraceous hairs. Antennae ochraceous, with joints

annulated with fuscous. Palpi dark fuscous, with ochraceous hairs. Thorax warm fuscous, legs

Trichoptera a)

fulvous, anterior pair darker, apparently with only one spur on anterior tibia. Abdomen fuscous.

Fore wing speckled with fuscous and ochraceous pubescence, the fuscous colour predominating

near the stigma and towards the apex of the wing. Hind wing with sparse fuscous pubescence.

In fore wing, apical fork no. 1 twice, and fourth apical cellule nearly twice, as long as their

respective footstalks, bases of discoidal and thyridial cells at about the same level. Hind wing dis-

tinctly wider than fore wing, fork no. 1 and fourth apical cellule each rather longer than its foot-

stalk but not twice as long.

§ Genitalia. The dorsal margin of the ninth segment is triangularly produced at its centre.

Cerci long and slender, about two-thirds as long as claspers, sparsely hairy. The tenth segment

forms a pair of slender, acute spines, about as long as cerci, apices curved downward. There are

no lateral processes, but beneath the spines is a thin, tapering, semi-membranous lobe. Penis

strongly recurved downward and basad at about midway. Clasper long, in side view with a

broad base, the upper apical angle of which is produced in a short setose finger and the lower

apical angle forming an incurved triangular plate. Between these angles the main part of the

clasper extends in a long, slender, forcipate finger, slightly sinuous about midway. From the

inner surface of the clasper near its base arises a more slender process, a little shorter but dilating

to a clavate apex, from above slightly sinuous.

Length of fore wing, 3, 9-10 mm., 2, 8 mm.

Type 3, mounted as a microscope preparation, allotype 2, pinned, both from the Mahoma

River, and paratypes (pinned). The generic placing of this species is perhaps open to question.

The venation of both the g and 2 fore wing indicates that it should be placed in Athripsodes. I

have not been able to trace a second spur on the anterior tibia, and the genitalia of the male cer-

tainly recall that of the European species Homilia leucophaea (Rambur), in which, however, the

venation of the fore wing is alike in both sexes. I have therefore decided to place this species in

Athripsodes, where there are already several other species with similar characteristics, and to one

of which, Athripsodes fissus (Ulmer), the present species shows considerable similarity. It differs

chiefly in the absence from the tenth segment of the curved, clavate, lateral processes, and in the

different proportions of the basal and the apical parts of the clasper.

Triaenodes wambana Mosely

Mosely (1939, p. 15).

RUWENZORI RANGE: Bundibugyo, 3440 ft., 22.viii-3.ix.1952, I ¢.

Recorded Distribution: Ruwenzori.

Triaenodes elegantula Ulmer

Ulmer (1908, p. 6).

RUWENZORI RANGE: Semliki Forest, 2700 ft., Hot Springs, 28.vili-1.ix.1952, I 3.

Recorded Distribution: Tanganyika (Usambara), Zululand.

Adicella magna sp.n. (Figures 23-25, p. 61)

RUWENZORI RANGE: Ibanda, 4700 ft., 4-12.ix.1952, 1 4; Mahoma River, 6700 ft.,

13-16.viii.1952, I Q, referred with some doubt to this species.

54 Ruwenzori Expedition, 1952, Volume II

Head dark fulvous, with dense ochraceous hairs. Antenna ochraceous, joints obscurely fuscous.

Palpi fulvous. Thorax fulvous, above with two longitudinal lines of short ochraceous hairs. Legs

and abdomen ochraceous.

Wings hyaline, pubescence sparse, ochraceous, apical cellules of fore wing with small, obscure

areas of fuscous pubescence. In fore wing apical fork no. 1 as long as its footstalk, fourth apical

cellule sessile. Thyridial cell nearly twice as long as discoidal. In hind wing, apical fork no. 1

shorter than its footstalk, fourth apical cellule sessile.

3 Genitalia. The ninth segment is moderately produced at the centre of its dorsal margin in a

blunt triangle, beyond which are two small, membranous, triangular processes. The tenth segment

is short, its sides much produced downwards in rounded, slightly incurved lobes. Between these

lobes the apical margin projects in a truncated triangle, narrowly excised at its centre and with a

divergent, truncated process on each side. Cerci large, rounded in side view, truncate from above,

welded basally to the tenth segment. Penis short, stout, down-curved; within it, in a cleared

preparation, can be seen a short, rod-like structure and a number of spiniform hairs. Clasper of

moderate length, slender from the side, but from above rather broader, particularly at the base;

apex rounded, hooked inwards and carrying several stout teeth.

Length of fore wing, 3, 8 mm.

Type 3, with abdomen mounted in Canada balsam. The female from the Mahoma River is

referred with some uncertainty to this species chiefly on the evidence of similarity of appearance.

It is rather larger than the male (fore wing 9 mm.). This species is closely related to A. monachus

Barnard, but differs in its larger size, more rounded cerci and the more complex structure of the

central part of the tenth segment, which is separated from the side lobes by a wide, rounded

excision.

Adicella silvestris sp.n. (Figures 26-28, p. 61)

RU WENZORI RANGE: Semliki Forest, 2850 ft., 22.vili-3.ix.1952, 17 g, 7 Q.

The general appearance is that of a small example of A. magna sp.n. The apex of the fore

wing is marked with small areas of fuscous pubescence at the margins of apical cellules two to six

(not present in the type of A. magna). In the fore wing, apical fork no. 1 is twice the length of its

footstalk, fourth apical cellule sessile; in hind wing, fork no. 1 as long as its footstalk, fourth

apical cellule sessile.

3 Genitalia. The ninth segment is moderately produced in a truncated, dorsal triangle. The

tenth segment is short, directed obliquely downward, not excised in the side view, but with a

pair of transparent fingers arising from its upper surface. Cerci short, truncate, bases welded to the

tenth segment. Penis short and stout, curved downward, enclosing a short spine. Clasper bent

upward in side view, from behind broad basally, then abruptly constricted to about half the basal

width, spatulate, armed on inner, upper surface with about three stout teeth.

Length of fore wing, J, 6 mm., 9 5-6 mm.

Type 3 pinned (with abdomen mounted in Canada balsam), allotype 9 and paratypes pinned.

This species is also closely related to A. monachus Barnard, but differs in having two finger-like

processes on the tenth segment, which is shorter, and in the less clavate apex of the clasper.

= an ai

Trichoptera 55

SERICOSTOMATIDAE

Goerodes edwardsi Mosely

Mosely (1939, p. 5).

RUWENZORI RANGE: Nyamaleju, 10,530 ft., 14-19.vii.1952, 3 5; Semliki Forest, 2850 fe,

22.Vili-3.1X.1952, I ¢.

Recorded Distribution: Ruwenzori.

Goerodes excelsior (Navas)

Crunoeciella excelsior Navas (1931, p. 132).

Goerodes excelsior (Navas), Mosely (1939, p. 6).

RUWENZORI RANGE: Nyamaleju, 10,530 ft., 14-19.vil.1952, I 3; Semliki Forest, 2850 ft.,

22.Vi1-3.1X.1952, 3 dG.

Recorded Distribution: Ruwenzori.

Goerodes inferior (Navas)

Crunoeciella inferior Navas (1931, p. 135).

Goerodes inferior (Navas), Mosely (1939, p. 7).

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.viii.1952, 5 3, 8 9; Ibanda, 4700 ft.,

F=t21X.1952, 6 6, I &.

Recorded Distribution: Ruwenzori.

Goerodes nudata (Navas)

Crunoeciella nudata Navas (1931, p. 134).

Goerodes nudata (Navas), Mosely (1939, p. 10).

RUWENZORI RANGE: Nyinabitaba, 8650 ft., 7-13.vil.1952, I 33 Nyamaleju, 10,530 ft.,

14-I9.Vil.1952, 3 3.

Recorded Distribution: Ruwenzori.

Goerodes sp.

RUWENZORI RANGE: Nyinabitaba, 8650 ft., 7-13-vii.1952, 6 9; Nyamaleju, 10,530 ft.,

14-I9.Vii.1952, 4 9.

Goerodes sp.

RUWENZORI RANGE: L. Bujuku, 13,050 ft., 22-28.vil.1952, I 6.

56 Ruwenzori Expedition, 1952, Volume II

Combined List of Species represented in the 1934-5 and 1952 Expeditions

1934-5 1952 1934-5 1952

Rhyacophilidae Calamoceratidae

1. Synagapetus u. ungulatus (Mosely) x 20. Anisocentropus usambarensis Ulmer| x

2. S. ungulatus exsectus sp.n. ~

Philopotamidae Leptoceridae

3. Wormaldia kyanus (Mosely) | x 21. Athripsodes asanus (Mosely) x

4. W. fletcheri sp.n. | x 22. A. bifidus sp.n. x

5. Chimarra clara (Mosely) x x 23. A. quadrispinus sp.n. x

6. C. zoria (Mosely) x 24. A. varius sp.n. x

Chimarra sp. 9 x Athripsodes sp. 8 x

7. C. foliata sp.n. x 25. Leptocerina talopa Mosely x

26. Triaenodes legona Mosely x

Psychomyiidae 27. T. wambana Mosely x x

8. Lype afra Mosely x 28. T. elegantula Ulmer x

9. Paduniella ankya Mosely x x 29. Triaenodella hastata (Ulmer) x

10. Parecnomina forcipata gen. sp.n. x 30. Oecetis kathia Mosely x

31. O. angustipennis Mosely x

Hydropsychidae 32. O. portalensis Mosely x

11. Hydropsyche namwa Mosely ye x 33. O. thikanensis Mosely x

12. H. bwambana Mosely x x 34. Leptocerus intricatus (Mosely) x

13. H. wamba Mosely x x 35. Adicella magna sp.n. x

Hydropsyche sp. x 36. A. silvestris sp.n. x

14. Cheumatopsyche trifida Mosely x

Cheumatopsyche sp. 9 x Sericostomatidae [

15. Diplectronella afra Mosely x x 37. Goerodes edwardsi Mosely x x

38. G. excelsior (Navas) x x |

Hydroptilidae 39. G. inferior (Navas) x x |

16. Afritrichia aurea Mosely ~ 40. G. nudata (Navas) x x

17. Ugandatrichia minor Mosely ~ Goerodes sp. 2 x

18. U. nigra Mosely x x Goerodes sp. 3 x

19. U. acuta Mosely x l,

References |

MosrLy, M. E., 1931. Ann. Mag. N. H., (10) 8. |

Mosrty, M. E., 1939. Ruwenzori Expedition, 1934-5, 3 (1).

NavAs, L., 1931. Brotéria, Zool., 27.

Umer, G., 1908. Sjoestedt’s Zoologische Kilimandjaro-Meru Expedition, 2 (13). |

Trichoptera

Fics. 1-3. Synagapetus ungulatus exsectus ssp.n. g genitalia

(penis omitted). 1, lateral; 2, ninth and tenth segments,

dorsal; 3, right clasper and lower part of tenth segment,

ventral

Ruwenzori Expedition, 1952, Volume I

Fics. 6-8. Chimarra foliata sp.n. 3 genitalia. 6, lateral, penis

omitted; 7, penis, lateral; 8, ninth and tenth segments dorsal

Trichoptera

Fics. 9-12. Parecnomina forcipata gen. sp.n. g wings and genitalia. 9, wings; 10,

genitalia, lateral; 11, ninth and tenth segments, dorsal; 12, ninth segment and claspers,

ventral

Fics. 13-15. Athripsodes bifidus sp.n. 3 genitalia. 13, lateral;

14, ninth and tenth segments, dorsal; 15, right clasper from

behind

Ruwenzori Expedition, 1952, Volume II

Fics. 16-19. Athripsodes quadrispinus sp.n. 3 genitalia. 16, lateral; 17, ninth and

tenth segments dorsal; 18, penis-sheaths from behind; 19, right clasper and

margin of ninth segment, ventral

Fics. 20-22. Athripsodes varius sp.n. 3 genitalia. 20, lateral; 21, margin of ninth

and tenth segments, dorsal; 22, right clasper, ventral

Trichoptera

Fics. 23-25. Adicella magna sp.n. 3 genitalia. 23, lateral; 24, ninth and tenth

segments, dorsal; 25, left clasper, dorsal

Fics. 26-28. Adicella silvestris spn. 3 genitalia. 26, lateral;

27, ninth and tenth segments, dorsal; 28, right clasper from

behind

Ephemeroptera, Plecoptera and Neuroptera

By D. E. KIMMINs

Department of Entomology, British Museum (Nat. Hist.)

Ephemeroptera

This order is represented by fifteen pinned examples, mostly rather shrivelled and incomplete.

In view of their condition and the smallness of the series, it is not proposed to do more than list

them, identified as far as the genus.

Family BAETIDAE

Cloéon sp.

RUWENZORI RANGE: Semliki Forest, Hot Springs, 2750 ft., 28.viii-1.ix.1952, 1 g, 2 Q sub-

imagines.

Baétis sp.

RUWENZORI RANGE: Ibanda, 4700 ft., 4-6.vii.1952, 2 g, I 9 imagines, 1 3, 2 2 subimagines;

Mahoma River, 6700 ft., 13-16.vili.1952, 1 g subimago.

Centroptilum sp.

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.viil.1952, I Q imago.

Centroptilum sp.

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22.viii-3.1x.1952, I g imago.

Family TRICORYTHIDAE

Tricorythus sp.

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22-vili-3.1x.1952, I Q imago.

Family HEPTAGENIIDAE

Afronurus sp.

RUWENZORI RANGE: Semliki Forest, 2850 ft., 22.viii-3.ix.1952, I 2 imago, 1 ¢ subimago.

64 Ruwenzori Expedition, 1952, Volume II

Plecoptera

This order is represented by a single male example of the species Neoperla spio (Newman), a

species which is widely distributed in Africa. The present specimen is from Ibanda, 4700 ft.,

20-21.VI1l1.19 52.

Neuroptera

The order Neuroptera is represented by a dozen examples of the families Ascalaphidae, Osmyli-

dae, Hemerobiidae and Chrysopidae, in all, eight species, of which two are here described as

new. The types of these are in the British Museum (Nat. Hist.).

Family ASCALAPHIDAE

RU WEN ZORI RANGE: Semliki Forest, 2850 ft., 22.vili-3.ix.19§2, 1 larva.

Family OSMYLIDAE

Spilosmylus camerunensis (NavAs)

RUWENZORI RANGE: Bundibugyo, 3440 ft., 22.viii-3.ix.1952, I .

Recorded Distribution: West and East Africa.

Family HEMEROBIIDAE

Kimminsia majuscula sp.n.

(Figure 1, p. 66)

RUWENZORI RANGE: Lamia Valley, 11,900 ft., 30-31-vii.1952, I g (HOLOTYPE). Nyamaleju,

10,530 ft., 14-19.vii.1952, 2 G (paratypes).

Head fulvous above, spotted with fuscous, frons shining piceous, mouthparts fulvous. Antennae

dark fulvous. Prothorax transverse, lateral margins triangularly produced; fulvous, spotted with

fuscous, a longitudinal, dark fuscous stripe on each side, leaving only the median third fulvous.

Meso- and metathorax fuscous, sometimes with an obscure, paler, median stripe. Legs pale

fuscous. Abdomen fuscous.

Fore wing elongate-oval, obtusely rounded at its apex, costal margin convex. Membrane hya-

line, with numerous greyish markings arising from the fuscous spots on the veins and with

heavy brownish markings over the anal area. Veins pale, with brownish spots, the margin of

the wing alternately pale and dark. Costal area moderately broad, only gradually narrowed at

its base. Three radial sectors, the third forking twice before the outer gradate series; six cross-veins

in both inner and outer series, which are fuscous. Hind wing oval, apex obtusely rounded. Mem-

brane hyaline, veins dark fuscous except in the pterostigmatic area, which is pale. The radial

sector emits four branches before the outer gradate series, with a considerable space between the

third and the outermost branch. Six cross-veins in the outer gradate series and two in the disc

of the wing.

Neuroptera 65

3 Genitalia. Ectoprocts large, broad at their bases, tapering to rounded apices, the lower, inner

margin of each produced shortly before the apex in a short, inwardly and basally directed tooth,

its upper margin with a comb-like row of acute black teeth. This row of teeth is shorter than in

K. nubila (Kimmins), barely extending to the middle of the appendage. Gonarcus with a long,

moderately stout mediuncus, the entoprocessi forming acute, down-curved hooks. Parameres

long, slender, slightly sinuous.

Length of fore wing, 12:5 mm.

Holotype and paratypes pinned, one paratype with abdomen mounted in Canada balsam. In

general appearance this species resembles a large K. nubila (Kimmins) and the general pattern

of the male genitalia is similar. It may be distinguished by the relatively shorter row of comb-

like teeth on the ectoproct, the apex of which is somewhat differently shaped, the stouter mediun-

cus and the curved, hook-like entoprocessi. Comparative figures of both species are given, which

should make these differences quite clear.

Hemerobius sp.

Two examples, of different species, both lacking genitalia and not determinable with certainty,

from the following localities.

RUWENZORI RANGE: Misigo, 8550 ft., 2-3.viii.1952, and Mahoma River, 6500 ft.,

13-16.V111.19 52.

Eumicromus timidus (Gerstaecker)

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.vili.1952, I g.

Widespread in Africa.

Eumicromus capensis (Esben-Petersen)

RUWENZORI RANGE: Mahoma River, 6700 ft., 13-16.vili.1952, I 9.

Recorded Distribution: South and East Africa.

Family CHRYSOPIDAE

Chrysopidia varians sp.n.

(Figures 2-3, p. 67)

RUWENZORI RANGE: Nyinabitaba, 8650 ft., 7-13.vii.1952, 1 S (HoLoTyPE), 2 9 (allotype and

paratype).

3 (pinned). General colour yellowish. Head immaculate, antenna with its basal segment short

and stout (succeeding segments missing). Palpi pale fuscous. Pronotum about as broad as long,

somewhat narrowed anteriorly; there is a faint indication of a reddish, transverse, median line.

Meso- and metanota yellowish green, immaculate. Legs pale yellowish. Abdomen pale yellowish.

Wings hyaline, venation yellowish, the gradate veins, many other cross-veins and the anal

veins very faintly brownish. Venation as figured.

3 Genitalia. Ectoprocts (fused to ninth tergite) forming a pair of plates, apical margin in side

view slightly concave. Fused eighth and ninth sternites forming an elongate subgenital plate,

66 Ruwenzori Expedition, 1952, Volume II

its upper margin running in shallow, concave curve to the obliquely truncate apex. Beyond the

apex, and linked to it by membrane, is a short, broad, moderately sclerotized plate and within

it is a short, sagittate structure with widespread arms, the gonapsis. Gonarcus narrow and arched,

with an acute apex in side view. Pseudopenis also arched, the lateral wings flattened and rounded,

median hook long, slender, bent downwards. Fused to the pseudopenis on each side is a short

sinuous structure.

Q. Resembling the male, antenna nearly as long as fore wing. Both allotype and paratype show

variations in the venation, notably in the shape of the first intra-median cell of the fore wing. In

the male it has the normal Chrysopa form, rather long and narrow, but it does not reach the medio-

cubital cross-vein beyond it. In one of the females it just reaches, and in the other it terminates in,

this cross-vein, much as in Nothochrysa. In one female (paratype) there are only two gradate

series in the hind wing and in the allotype there are two or three cross-veins in the median

gradate series in this wing.

Length of fore wing, 3, 16 mm., 9, 17-18-3 mm.

I believe that this is the first African representative of this palaearctic genus. It differs from C.

jordani Navas (Mediterranean North Africa) in its narrower, more pointed wings, its more

definite triple series of gradate veins and in the absence of green lateral bands bordering the

yellow on the meso- and metanota.

Fic. 1. Kimminsia majuscula sp.n. and K. nubila Kimmins, $ genitalia.

(A), majuscula, lateral, left ectoproct not shown; (B), nubila, gonarcus,

lateral; (C), nubila, apex of right ectoproct