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British Museum (Natural History)

1952

Volume I, Number 8

ae, Lasiocampidae, Eupterotidae, Bombycidae Saturniidae, Sphingidae Be. Py D2 5. FLETCHER

. s of British Museum (Natural History) London

Issued April, 1968 Price 17s. 6d.

8

Wosidac Metarbelidae, Psychidae, Limacodidae, Drepanidae, Uraniidae, Lasiocampidae, Eupterotidae, Bombycidae, Saturniidae & Sphingidae

By DS. FLETCHER | — British Museum (Natural ascot)

The present paper, which concludes the Lepidoptera volume of the reports of the Ruwenzori Expedition 1952, includes the families Cossidae, Metarbelidae, Psychidae, Limacodidae, Drepani- dae, Uraniidae, Lasiocampidae, Eupterotidae, Bombycidae, Saturniidae and Sphingidae. Sixty- eight species of the eleven families are listed; seventeen species are described as new. A further species and subspecies were described as new by A. Watson in other publications dealing with Drepanidae.

The treatment of species and the citation of references follow the pattern of the earlier numbers of the volume. The colour names used are those of Ridgway’s “Color Standards and Color Nomenclature”. All specimens, unless otherwise stated, are in the British Museum (Natural History), abbreviated in the text to B.M.(N.H.).

I should like to express my thanks to the following for their kind help with identifications:

Monsieur P. Rougeot (Saturniidae); Mr. W. H. T. Tams (Lasiocampidae) and Mr. A. Watson (Drepanidae).

COSSIDAE

Azygophleps boisduvalii (Herrich-Schaffer)

Zeuzera boisduvalii Herrich-Schaffer, 1854, Sammlung aussereurop. Schmett., 1 (1), pl. 35 : 167; MSSos L 2 58.

Azygophileps boisduvalii Herrich-Schaffer, Gaede, 1930, in Seitz, Gross-Schmetterlinge der Erde, Te: 545, pl. 79 : €

RUWENZOR!I: Kilembe, 4,500 ft., xii.1934-1.1935 (Edwards), 1 3; Ibanda, 4,700 ft., 20-21.viii.

1952 (Fletcher), 3 3; ibid., 4-12.1x.1952, 2 $; Bwamba Pass (west side), 5,500-7,500 ft., xii.1934- 1.193 5 (Edwards), 1 3.

UGANDA: Semliki Forest, 2,850 ft., 22.vili-3.ix.1952 (Fletcher), 2 $; Bundibugyo, 3,440 ft., 22.Vili—3.1x.1952 (Fletcher), 1 3.

Distribution: Guinea; Sierra Leone; Ivory Coast; Ghana; Nigeria; Sudan (White Nile) ; Ethiopia; Kenya; Uganda; Congo (Leopoldville); Zambia; Rhodesia.

325

326 Ruwenzori Expedition, 1952. Volume I, Number 8 Azygophleps inclusa (Walker)

Zeuzera inclusa Walker, 1856, List Lep. Ins. B.M. 7 : 1534. Zeuzera petax Wallengren, 1860, Wien. ent. Monatschr. 4 : 43. Azygophleps kilimandjarae Le Cerf, 1914, Bull. ent. Soc. Fr. 1914 : 399.

zygophleps inclusa Walker, Gaede, 1930, in Seitz, Gross-Schmetterlinge der Erde, 14 : 545,

pl 70 sie:

RUWENZORI: Bugoye, 1,300 m., 14.iv.1948 (Holm), 7 3 in Naturhistoriska Riksmuseum, Stockholm; Ibanda, 4,700 ft., 20-21.vii.1952 (Fletcher), 2 ¢; Bwamba Pass (west side), 5,500- 7,500 ft., xii.1934-1.1935 (Edwards), 1 3.

UGANDA: Fort Portal, 5,000 ft., xii.1934-1.1935 (Edwards), 2 3.

Distribution: Sokotra; Somalia; Sudan; Kenya; Tanzania; Zambia; Mozambique; Malawi; Rhodesia; Transvaal; Natal; Uganda; E. Congo (Leopoldville); Ghana; Ivory Coast; Sierra Leone; Guinea.

Azygophleps tandoensis Bethune-Baker (Figure 1)

Azygophileps tandoensis Bethune-Baker, 1927, Ann. Mag. nat. Hist. (9) 20 : 330.

RUWENZORI: Bugoye, 1,300 m., 14.iv.1948 (Holm), 6 3 in Naturhistoriska Riksmuseum, Stockholm. Distribution: Angola; Malawi; Kenya.

Azygophleps ochricosta sp.n. (Figures 2, 3, 45, 46)

3 48-62 mm.; 2 65 mm. Male: Antenna with 20-23 pectinate segments. Palpus and frons fuscous to fuscous black; patagia and tegulae pinkish buff, patagia with slender, horizontal, fuscous black bar; thorax pinkish buff laterally, otherwise fuscous black; abdomen pinkish buff irrorate with fuscous black, bearing a fuscous black dorsal crest on segment one. Upperside of wings pinkish buff patterned with fuscous and fuscous black; fore wing conspicuously streaked with light buff to white interneurally in discal area distad of discocellulars; a similarly coloured, ovate spot in middle of submedial fold; cilia with fuscous black spots at vein ends (Figures 2, 3). Underside of wings pinkish buff patterned with fuscous black.

Female antenna with 18 shortly pectinate segments. Similar in colour and pattern to male.

Male genitalia (Figures 45, 46): Vesica without cornutus.

A. ochricosta, widely distributed in the forest regions of equatorial Africa, is probably most closely related to A. tandoensis, from which it may be distinguished by colour and pattern.

A similarly coloured and similarly patterned species, known from four males, is sympatric with ochricosta in Rwanda and occurs at Njombe in Tanzania; it differs in having 26-28 pectinate segments in the male antenna and differs also in the aedeagus having a strongly sclerotized, longitudinal, dorsal ridge.

[GUINEA] FRENCH GUINEA: Soundedou, nr. Macenta, 1,600 ft., 12.v.1926, 1 S$; Bokouni, nr. Macenta, 1,750 ft., 11.v.1926, I 3; Macenta, 2,000 ft., 3.v.1926, 1 3, all (C. L. Collenette).

[CONGO (LEOPOLDVILLE)]: BELGIAN CONGO: Ituri Forest, 3,800-4,100 ft., ii-tv.1930,

Cossidae 327

begin. wet season (Lord Howard de Walden Exp.), 1 3; Lake Kivu, 2-12.viii.1954 (C. G. M. de Worms), 1 3; W. Kivu, Upper Lowa Valley, Nr. Masisi, 5—6,000 ft., forest and long grass, ii.1924, wet season (T. A. Barns), 1 3.

[RwanDA]: Ruanda Distr., Lake Kivu, Rugege Forest, 7-8,000 ft., xii.1921 (T. A. Barns), 2 3

O-

RUWENZORI: Namwamba Valley, 6,500 ft., xii.1934-i.1935 (Edwards), 2 3.

UGANDA: Kigezi District, 7,500-8,000 ft., vi.1951(T. H. E. Jackson), 1 3; Kanaba Gap, bamboo forest, 8,000 ft., 3.iv.1951 (J. A. Burgess), 1 3; Mafuga Forest, Entebbe, iii.1961 (N. Mittoi), 2 3.

KENYA: Kitale, vii.1958 (C. Howard), 1 3; Hoey’s Bridge (Capt. Pitman), 1 3.

}

| [TANZANIA] TANGANYIKA TERR.: Arusha Dist. (Lieut. M. S. Moore), 1 9; E. Usambara

_ Mts., Amani, 11.1953 (E. Pinhey), 1 $; Amani, v, vii, xi, xii (G. Pringle), 5 3; Mbeya, 28.xi.1950 (H. B. D. Kettlewell), 1 3; Njombe, 6,000-6,500 ft., 27.1.1952 (Dr. W. Peters), 1 3.

_ _ [MALAWI] NYASALAND: (H. Barlow), 2 3.

|S. RHODESIA: Melsetter, Mountain Inn, xi.1950 (H. B. D. Kettlewell), 5 3; Vumba, 7.xi.1936

_ (J. E. Drysdale), 11 3 including holotype.

Azygophleps mediopallens sp.n. (Figures 4, 5, 44)

3 63-77 mm. Male: Antenna with 30-33 pectinate segments. Palpus fuscous black; frons, _ patagia and tegulae white to tilleul buff mixed with fuscous black, patagia with slender, horizontal, . fuscous black bar; thorax light to warm buff mixed with fuscous, edged laterally with a streak of fuscous black and then with one of clear light to warm buff; abdomen light buff mixed with _ fuscous and bearing a fuscous medio-dorsal crest on segment one. Upperside: fore wing pinkish _ buff patterned with fuscous black; middle of costal and distal half of discal areas irrorate with | white; middle of submedial fold conspicuously white to light buff, posterior half slenderly divided with a fuscous black streak. Hind wing white shading to light buff proximally, varying | but usually very lightly irrorate with fuscous black; cilia light buff with fuscous black spots at | the vein ends (Figures 4, 5). Underside: fore wing light buff posteriorly, pinkish buff with fuscous _ black along costa and streaked interneurally with fuscous black distad of discal area. Hind wing _ light buff irrorate proximally and streaked interneurally with fuscous black distad of discal area. Genitalia (Figure 44): Vesica with a slender strap-like cornutus: in other respects similar to _A. ochricosta (Figures 45, 46). | A species that is distinctive in colour and pattern, known at present only from the ericaceous zone of Ruwenzori.

RUWENZORI: Namwamba Valley, 10,200 ft., xii.1934-4.193 5 (Edwards), 9 3 including holotype.

z| | Oreocossus occidentalis Strand (Figures 7-9)

'Oreocossus occidentalis Strand, 1913, Arch. Naturgesch. 78 (A) 12 : 35.

Oreocossus occidentalis Strand, 1915, op. cit. 81 (A) 2 : 134, pl., figure 2. Oreocossus kilimanjarensis occidentalis Strand, Gaede, 1930, in Seitz, Gross-Schmetterlinge der Erde, mes 547, pl.79): hb.

328 Ruwenzori Expedition, 1952. Volume I, Number 8

RUWENZORI: Kilembe, 4,500 ft., 5 g, 1 9; Namwamba Valley, 6,500 ft., 6 ¢; Bwamba Pass (west side), 5,500-7,500 ft., 9 3; all xii.1934~-1.1935 (Edwards); Mahoma River, 6,700 ft., 13-16. viii.1952 (Fletcher), 5 3; Nyinabitaba, 8,650 ft., 7-13.vii.1952 (Fletcher), 1 3.

The short series of five males from the Mahoma River match well Strand’s type of occidentalis from Spanish Guinea, in colour, pattern and size, measuring in wingspan 40-45 mm.; Strand’s type measures 40 mm. (Figure 9). Four of the series of nine specimens from the west side of the Bwamba Pass measure 60-65 mm. and are patterned with fuscous black on a paler ground colour than that of the type and the hind wing especially has a much more sharply marked and contrasted pattern (Figure 7). The other specimens from the Bwamba Pass, the Namwamba Valley and from Kilembe range in wingspan from 35-65 mm. and are intermediate in depth of shade of marking and of contrast in pattern.

A series of five males collected by Edwards in Kenya (Mt. Kinangop, 8,000 ft., x.1934) range in wingspan from 39-44 mm. The ground colour of the wings is white to tilleul buff, the pattern, sparse on the hind wing, is fuscous black. These specimens are matched by a further 16 male speci- mens from various localities in Kenya and two male specimens from N. Tanzania (Figure 8). The single male specimen from Nyinabitaba, high in the rain forest of Ruwenzori, and the speci- men recorded from the Semliki Valley by Hampson (1909 : 134) as cilimanjarensis Holland approach closely the Kinangop series in size, colour and pattern.

Female specimens associated with typical occidentalis have antennal pectinations twice as long as the diameter of the shaft; those associated with the Kinangop series have antennal pectinations equal or subequal in length to the diameter of the shaft. No corresponding structural difference has been found in the males of the two groups.

O. occidentalis Strand in its typical form is represented in the British Museum (Natural History) by specimens from Mt. Cameroun, Angola, E. Congo (Leopoldville), Uganda, Kenya, Tanzania and Mozambique.

The Kinangop series and those specimens associated with them may represent a higher elevation form of occidentalis or perhaps a distinct species. Until adequate material is available, with precise data relating to elevation and to vegetation associations, the Kinangop form is provisionally placed with occidentalis.

Brachylia badiala sp.n. (Figures 6, 41)

3 31-36 mm.: Vestiture pinkish buff irrorate with bister; metathorax and dorsal crest on first abdominal segment bister; patagia edged apically with bister; mesothorax pinkish buff; legs long-scaled and bister anteriorly, short-scaled and pinkish buff posteriorly. Upperside: fore wing pinkish buff; medial area suffused with russet, costal and inner margins deep brownish drab; transverse striae and medial fascia, broken in discal area, black. Hind wing pinkish buff suffused with and weakly patterned in reticulate form with fuscous (Figure 6). Underside of wings similar to upperside of hind wing.

Genitalia (Figure 41). Dorsal margin of valve with apical fourth sclerotized, crenulate and ridged and with a U-shaped, tapered process at base; medial plate of gnathos densely spined; paired anellus processes setose; vesica without cornutus.

Distinct in colour and pattern; differing structurally from the related B. terebroides Felder (Figure 43) in the form of the valve and of its basal process.

Metarbelidae 329

RUWENZORI: Namwamba Valley, 6,500 ft., xii.1934~-i.1935 (Edwards), 1 3; Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 2 3 including holotype, which bears additional label, Cossidae genitalia slide No. 40.

Phragmatoecia pallens (Herrich-Schiffer)

Rhizona pallens Herrich-Schaffer, 1854, Sammlung aussereurop. Schmett. 1 (1), pl. 35 : 169.

RUWENZORI: Kilembe, 4,500 ft., 1 g; Bwamba Pass (west side), 5,500-7,500 ft., 11 g, 2 9; Namwamba Valley, 6,500 ft., 1 3, all xii.1934~-i.1935 (Edwards); Mahoma River, 6,700 ft., 13-16.vili.1952 (Fletcher), 1 3.

Distribution: Sierra Leone; Nigeria; Cameroun; Uganda.

METARBELIDAE

Metarbela nubifera (Bethune-Baker) (Figure 12) Marshalliana nubifera Bethune-Baker, 1909, Ann. Mag. nat. Hist. (8)3 : 425. RUWENZORI: Ibanda, 4,700 ft., 4-12.ix.1952 (Fletcher), 1 9. UGANDA: Fort Portal, 5,000 ft., xii.1934-1.1935 (Edwards), 1 9. Distribution: Kenya, Uganda.

Metarbela splendida sp.n. (Figure 10)

6 47 mm.: Vestiture light buff weakly suffused with drab. Fore wing light buff patterned with _ broken, transverse striae of ochraceous buff surrounded by cinnamon brown irroration; pattern

_ dense anterior of vein Cu1b and at three-fifths inner margin; vein Cu1b edged posteriorly with | parallel area of clean and sharply defined ground colour. Hind wing light buff very lightly

— irrorate with drab.

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Distinct in the genus by reason of its pattern and its very large size, being one and one-half times greater in wingspan than any known species.

RUWENZORI: Bwamba Pass, 6,500 ft., xii.1934~-1.1935 (Edwards), holotype.

Salagena arcys sp.n. (Figures 11, 42)

$28 mm.: Legs white mixed with drab and bister. Frons and thorax white, the long hair scales

| tipped with Outer abdomen drab with some white to tilleul buff scaling posteroventrally. Fore ' wing cinnamon drab, rather paler in anterior proximal fourth, with black reticulate pattern; ‘terminal interneural spots white. Hind wing drab with a weak, fuscous, reticulate pattern;

terminal interneural spots pale (Figure 11).

Genitalia (Figure 42): Uncus very slightly tapered to a broadly rounded apex; sclerotized arms

of gnathus broad and spatulate, connected medially by a weak membrane.

The cinnamon drab ground colour and sharply defined black reticulate pattern of the fore

wing are diagnostic.

330 Ruwenzori Expedition, 1952. Volume I, Number 8 RUWENZORI: Bwamba Pass (west side), 5,500-7,500 ft., xii.1934-1.1935 (Edwards), Cossidae genitalia slide No, 36, holotype.

A female, with similar colour and pattern, collected by Dr. G. Pringle at Amani, Tanzania in February is associated with arcys, but excluded from the type series.

PSYCHIDAE

Monda immunda Joicey & Talbot Monda immunda Joicey & Talbot, 1924, Bull. Hill Mus. Witley, 1(3) : 563.

RUWENZORI: Bwamba Pass (west side), 5,500-7,500 ft., 1 ¢; Namwamba Valley, 6,500 ft., t 3; both xii.1934-1.1935 (Edwards).

Distribution: Ruwenzori.

LIMACODIDAE

Paryphanta tenuifascia Hering Paryphanta tenuifascia Hering, 1937, Proc. R. ent. Soc. Lond. (B)6 : 82, 85, pl. 1 : 8.

RUWENZORI: Bugoye, 4,500 ft., §—10.ix.1952 (Fletcher), 1 3; Ibanda, 4,700 ft., 4-12.1x.1952 (Fletcher), 3.

Parapluda invitabilis (Wallengren) Heterogenea invitabilis Wallengren, 1860, Wien. ent. Monatschr. 4 : 44. Apluda similis Distant, 1897, Ann. Mag. nat. Hist. (6)20 : 204. Parapluda invitabilis Wallengren, Janse, 1964, Moths of South Africa, 7 : 67, figs. UGANDA: Bundibugyo, 3,440 ft., 22.viii-3.ix.1952 (Fletcher), 1 3.

Distribution: W. Uganda; E. Congo (Leopoldville); Tanzania; Zambia; Rhodesia; Natal; Transvaal; Cape Province.

Parapluda incincta (Hampson) Apluda incincta Hampson, 1909, Trans. zool. Soc. Lond. 19(2) : 132, pl. 4 : 25. Apluda schaliphlebia Hampson, 1910, Ann. Mag. nat. Hist. (8)6 : 147. RUWENZORI: Ibanda, 4,700 ft., 20-21.viii.1952 (Fletcher), 1 3. Distribution: Uganda; Kenya; Zambia.

Ctenolita anacompa Karsch (Figures 47, 48)

Ctenolita anacompa Karsch, 1896, Ent. Nachr. 22 : 273. Ctenolita anacompa Karsch, Hering, 1928, in Seitz, Gross-Schmetterlinge der Erde, 14 : 452,

peed:

Limacodidae RUWENZORI: Ibanda, 4,700 ft., 20-21.viii.1952 (Fletcher), 1 3. UGANDA: Bundibugyo, 3,440 ft., 22.viii-3.ix.1952 (Fletcher), 2 3.

Distribution: Fernando Po; Sierra Leone; Ivory Coast; Ghana; Togo; Nigeria; Congo (Leopoldville); Uganda.

A closely similar species, represented in the British Museum (Natural History) by a series of 11 males from Kaimosi, N.E. of Lake Victoria, differs structurally in the greatly reduced scobina- tion of the manica, dense in anacompa, and in the more caudally placed, straight not hooked, lateral spine on the aedeagus (Figure 49); the series is conspecific with the type of Miresa melano- sticta Bethune-Baker from Kamilolo, Nandi, N.E. of Lake Victoria. Miresa melanosticta is here transferred to the genus Ctenolita, comb.n.

The species described and illustrated by Janse (1964 : 95, figures) as Cteiolita melanosticta

appears to be C. habernichti Wichgraf; this is a distinct species and not a synonym of melanosticta as Janse suggests.

331

Latoia chrysopa sp.n. (Figures 22, 50)

3 38-40 mm.: Frons, palpus, outer surface of legs and pectus bister; inner surface of legs and abdomen antimony yellow; thorax Rinnemann’s green. Upperside: fore wing Rinnemann’s green patterned with vinaceous buff suffused with bister; hind wing antimony yellow, cilia, termen and veins in distal half of wing bister (Figure 22). Underside of both wings antimony yellow, apical area and termen of fore wing, costal area and termen of hind wing suffused with bister.

Genitalia (Figure 50): Aedeagus slightly bulbous at base; vesica without cornutus.

A montane rain forest species closely similar in colour and pattern to Latoia carnapi (Karsch). Differs externally in its appreciably smaller size, carnapi having a wingspan in the male of 55-60 mm.; differs structurally in the genitalia in the shape of the valve and especially in the shape of the aedeagus, which in carnapi is spirally coiled at base and has two, slender, tapered supporting rods at apex (Figure $1).

[RWANDA]: Ruanda Dist., Lake Kivu, Rugege Forest, 7,000 ft., xii.1921 (T. A. Barns), 2 3, including holotype which bears additional label, Limacodidae genitalia slide No. 71; Ruanda

Dist., Kabira Forest, 12 miles north of Usumbura, north end L. Tanganyika, 7,000 ft.,i.1924, wet season (T. A. Barns), 1 3.

RUWENZORI: Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 2 3. KENYA: Molo [8,065 ft.] xii.1961 (J. Start), 1 3.

Latoia concavata (Strand) stat.n. (Figures 13, 53)

\ Parasa trapezoidea var. concavata Strand, 1913, Arch. Naturgesch. 78 A12 : 36. UGANDA: Semliki Forest, 2,850 ft., 22.vili-3.ix.1952 (Fletcher), 1 3. Distribution: Cameroun; Spanish Guinea; Congo (Leopoldville); Uganda.

Externally closely similar to Latoia trapezoidea (Aurivillius,1899 : 253), but differing in the male genitalia in the longer, more slender uncus, the slender, blade-like gnathos, the strongly

B32) Ruwenzori Expedition, 1952. Volume I, Number 8

sclerotized and scobinate area at the base of the dorsal margin of the valve and the almost straight aedeagus with a short spine at one side near the apex (Figure 53).

In L. trapezoidea, known only from Cameroun, the uncus is short with a broadly rounded apex, the perimeter of the apex strongly sclerotized, the gnathos is broad but narrowed medially, the valves are simple, slender and tapered and the aedeagus is sinuous with a strongly sclerotized, roudned apex extending to a hooked tip.

Parasa mesochloris (Hampson, 1910 : 146) is closely similar to trapezoidea, possibly a subspecies of it; it is represented in the collection of the British Museum (Natural History) from Ghana and Nigeria. In the male genitalia (Figure 52) the gnathos is not narrowed medially and the sclerotized apex of the aedeagus is crenulate, not rounded.

Janse (1964 : 117, figs.) records and illustrates what he believes to be trapezoidea from Rhodesia, but his description of the aedeagus accords neither with the aedeagus of the type of trapezoidea nor with that of mesochloris and evidently represents a distinct taxon.

Latoia sp. RUWENZORI: Bwamba Pass (west side), 5,500-7,500 ft., xii.1934-i.1935 (Edwards), Limaco- didae genitalia slide No. 75, 1 3.

Closely similar to, possibly a subspecies of L. urda (Druce). Terminal brown pattern of fore wing much reduced; hind wing faintly tinged with green. Valve narrower and aedeagus more slender than those of urda.

There is a similar specimen in the collection of the British Museum (Natural History) labelled:

E. CONGO: Kisenyi to Rutschuru, Limacodidae genitalia slide No. 76.

Latoia vivida (Walker)

Nyssia vivida Walker, 1865, List Lep. Ins. B.M. 32 : 478. Parasa arcuata Karsch, 1896, Ent. Nachr. 22 : 277. Parasa neumanni Karsch, 1896, Ent. Nachr. 22 : 278. Parasa vivida Walker, Hering, 1928, in Seitz, Gross-Schmetterlinge der Erde, 14 : 463, pl.74 : e. Latoia vivida Walker, Janse, 1964, Moths of South Africa, 7 : 118, figs. RUWENZORI: Ibanda, 4,700 ft., 4-12.ix.1952 (Fletcher), 1 3. UGANDA: Bundibugyo, 3,440 ft., 22.vili-3.ix.1952 (Fletcher), 3 3.

Distribution: Continental Africa from approximately 10°N. to 30°S. latitude.

Latoia nana Holland

Latoia nana Holland, 1893, Ent. News, 4 : 103, pl. 7 : 15. Parasa decolor Karsch, 1899, Ent. Nachr. 25 : 141. Syn.n. UGANDA: Bundibugyo, 3440 ft., 22.viii-3.ix.1952 (Fletcher), 1 3.

Distribution: Sierra Leone; Ivory Coast; Ghana; Nigeria; Cameroun; Central African Re-

public.

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Limacodidae 333 Latoia cinnamomarea sp.n. (Figures 14, $4, 55)

3 29-34 mm.; 9 34 mm. Male: Pectus, outer surface of legs, palpus, frons and patagia seal brown (a dark vinaceous brown); thorax and abdomen pinkish buff mixed with ochraceous tawny. Upperside: fore wing fawn colour; medial area posterior of cubitus raw sienna; distal half of medial area between radius and costa varyingly marked with raw sienna, with a spot in one example, with a few scales only in another; postmedial fascia slender, seal brown; remainder of proximal half of wing and cilia suffused with seal brown; hind wing pinkish buff to ochraceous tawny, cilia seal brown (Figure 14). Underside of wings cinnamon buff, costa and cilia of hind wing, greater part of fore wing, except posterior of vein Curb, suffused with seal brown.

Male genitalia: Valve tapered; ventral margin sinuous; vesica without cornutus (Figures 54, 55):

Female externally similar to male, but medial area of fore wing entirely raw sienna.

Externally the fore wing pattern, with the conspicuous patch of raw sienna in the posterior half of the medial area in the male and the entire raw sienna medial area in the female, and structurally the form of the valve in the male genitalia are diagnostic.

KENYA: Mt. Kinangop, 8,000 ft., x.1934 (Edwards), Limacodidae genitalia slide No. 105, 1 3; Escarpment, B.E.A. [British East Africa], iii-iv.1901, 6,500-8,000 ft. (Doherty), 3 3 including holotype, 1 9.

Prolatoia eburata sp.n. (Figures 20, 56, $7)

S$ 25 mm.: Antenna bipectinate; pectinations three times as long as diameter of shaft in basal three-fourths, then shortening apicad; basal three-fourths of scape drab, apical fourth ivory yellow. Hind tibia with two pairs of spurs. Pectus and inner surface of legs ivory yellow; outer surface of legs and remainder of vestiture bister. Upperside: fore wing bister, intensely so in discal area; some drab scaling anterior and posterior of disc; some ochraceous tawny scaling at one-third inner margin; an ivory yellow spot in subcubital fold in proximal fourth of wing; hind wing bister (Figure 20). Underside of each wing bister.

Genitalia (Figures 56, 57). Uncus curved slightly dorsad; aedeagus sinuous with curved, spined apex.

Externally the conspicuously marked wing pattern and structurally the form of the uncus and aedeagus are diagnostic.

RUWENZORI: Kilembe, 4,500 ft., xii.1934-i.1935 (Edwards), Limacodidae genitalia slide No.

106, holotype 3.

Phorma pepon Karsch

Phorma pepon Karsch, 1896, Ent. Nachr. 22 : 280. Thosea aurifrons Bethune-Baker, t911, Ann. Mag. nat. Hist. (8)7 : 567. Syn.n. Thosea chloris Fawcett, 1917, Proc. zool. Soc. Lond. 1917 : 245, pl. 1 : 5. Syn.n.

UGANDA: Semliki Forest, 2,850 ft., 22.viti-3.ix.1952 (Fletcher), 1 3.

Distribution: Gambia; Sierra Leone; Ghana; Togo; Nigeria; Fernando Po; Cameroun;

Angola; Congo (Leopoldville); Uganda.

334 Ruwenzori Expedition, 1952. Volume I, Number 8

Sporetolepis venusta Hering

Sporetolepis venusta Hering, 1928, in Seitz, Gross-Schmetterlinge der Erde, 14 : 455, pl. 73 : g. Chrysamma diachrysa Tams, 1929, Bull. Hill Mus. Witley, 3 : 171, pl. 8 : 9. Syn.n. UGANDA: Bundibugyo, 3,440 ft., 22. viii-3.ix.1952 (Fletcher), 2 3.

Distribution: Cameroun; Congo (Leopoldville).

Narosa bractea sp.n. (Figures 18, 19, 58, 59)

a

3 18-21 mm.; 2 22-24 mm.: Frons, vertex and patagia white; remainder of vestiture white irrorate with bister, tegulae and crests tipped with bister. Upperside; fore wing white suffused with ochraceous buff at apex and posterior of radial vein and vein Sc3; cubitus, medial, cubital and anal veins bister; cilia and inner margin irrorate with bister. Hind wing white; termen slenderly, and anal angle broadly suffused with bister and a little ochraceous buff. Underside: fore wing white; proximal three-fourths of costal area densely bister; remainder of wing suffused with ochraceous buff, densely in apical area, lightly elsewhere; cilia irrorate with bister. Hind wing white; termen very slenderly ochraceous buff, cilia irrorate with bister.

Male genitalia (Figures 58, 59): Anellus with stout, paired, spined basal processes and apically ornamented with long, stout, deciduous spines (lost from one side of figured preparation); vesica densely spined.

A strikingly distinct species characterized by the sharply defined pattern of bister-coloured veins on a background of ochraceous buff on the upperside of the fore wing.

UGANDA: Kigezi, Impenetrable Forest, Kanungu, §,000 ft., v.1952 (J..A. Burgess), 2 3 including holotype which bears additional label, Limacodidae genitalia slide No. 65; Bundibugyo, 3,440 ft., 22.vili-3.ix.1952 (Fletcher), 1 3; Jinja, Mariba Forest, x.1962 (R. H. Carcasson), 1 9.

[cHANA] GoLD coast: [Bibiani] Bibianaha, 700 ft., 1912 (H. G. F. Spurrell), 1 &.

Tetraphleba ruficeps (Hampson)

Tetraphleps ruficeps Hampson, 1909, Trans. zool. Soc. Lond. 19(2) : 133, pl. 4 : 36.

Thosea orea Tams, 1929, Bull. Hill Mus. Witley, 3 : 168, pl. 8 : 14. Syn.n. RUWENZORI: Mahoma River, 6,700 ft., 13 -16.viii.1952 (Fletcher), 3 3. Distribution: W. Uganda (Ruwenzori); E. Congo (Leopoldville), Kivu.

The species keys to Chrysamma Karsch in Hering’s key to the African genera of Limacodidae (1955) and to Ctenocompa Karsch in Janse’s key to the African genera of Limacodidae (1964). Distinct from both in the structure of the male genitalia; when the female is known anew genus will probably prove necessary.

The name Tetraphleba Strand, 1921 replaces Tetraphleps Hampson, 1892 nec Tetraphleps Fieber, 1861.

Limacodidae

Omocena syrtis (Schaus & Clements)

335

Miresa syrtis Schaus & Clements, 1893, On a collection of Sierra Leone Lepidoptera, 28, pl. 2 : 3. Ctenocompa ganale Pagenstecher, 1903, Jb. nassau. Ver. Naturk. 56 : 26, pl. t : 9. UGANDA: Semliki Forest, 2,850 ft., 22.viii—3.ix.1952 (Fletcher), 2 3.

Distribution: Senegal; Sierra Leone; Ivory Coast; Ghana; Nigeria; Cameroun: Central African Republic; Angola; Congo (Leopoldville); Zambia.

Thoseidea lineapunctata (Bethune-Baker) (Figures 21, 64, 65)

Thosea lineapunctata Bethune-Baker, 1911, Ann. Mag. nat. Hist. (8)7 : 567.

Thoseidea lineapunctata Bethune-Baker, Hering, 1955, Trans. R. ent. Soc. Lond. 107 : 224. UGANDA: Bundibugyo, 3,440 ft., 22.viii-3.ix.1952 (Fletcher), 3 3. Distribution: Angola.

Ctenocompa hilda (Druce) Miresa hilda Druce [1888], Proc. zool. Soc. Lond. 1887 : 682

Ctenocompa hilda Druce, Hering, 1928, in Seitz, Gross-Schmetterlinge der Erde, 14 : 453, pl. 73.236.

UGANDA: Semliki Forest, 2,850 ft., 22.viii-3.ix.1952 (Fletcher), 1 3. Distribution: Nigeria; Cameroun; Gabon; Angola; W. Kenya (Kakamega).

Trachyptena spinosata sp.n. (Figures 16, 17, 66, 67)

$19 mm. : Palpus, frons, vertex and patagia bister, tips of scales pinkish buff; thorax and abdomen pinkish buff. Upperside: fore wing pinkish buff lightly irrorate with bister in holotype (Figure 17), densely irrorate in medial area with warm sepia and bister in paratype (Figure 16); hind wing warm sepia, cilia pinkish buff. Underside of wings pinkish buff, costa of hind wing and costal area of fore wing irrorate with bister; outline of cell and veins distad of cell on fore wing bister.

Genitalia (Figures 66, 67). Process at base of dorsal margin of valve bearing a cluster of spines; a cluster of two or three spines situate medially in basal fourth of valve; vesica spined as illustrated (Figure 67).

Externally similar to Trachyptena agbaja (Bethune-Baker, 1915 : 200); differs structurally in the male genitalia in the shorter process at the base of the dorsal margin of the valve, in the presence of a small cluster of spines in the basal fourth of the valve and in the appreciably greater number and arrangement of the cornuti on the vesica.

UGANDA: Bundibugyo, 3,440 ft., 22.viii-3.ix.1952 (Fletcher), 2 3 including holotype, which bears additional label, Limacodidae genitalia slide No. 95.

Narosana agbaja Bethune-Baker, type-species of the genus Narosana Bethune-Baker (1915 : 200), is closely similar in structure to Trachyptena rufa Bethune-Baker, the type-species of Trachy- ptena Bethune-Baker (1911 : 572). Narosana agbaja is here transferred to Trachyptena (comb.n.) and Narosana thus becomes a junior synonym of Trachyptena. Syn.n.

336 Ruwenzori Expedition, 1952. Volume I, Number 8

Uniserrata holobrunnea Janse (1964. : 34, Figs.), the type-species of Uniserrata Janse (1964 : 33), is also closely related to Trachyptena rufa Bethune-Baker and is here transferred to Trachyptena (comb.n.); Uniserrata thus becomes a junior synonym of Trachyptena. Syn.n.

Trachyptena nigromaculata magna Hering (1933 : 213) has a male genitalia with deeply cleft, bilobate valves; the dorsal arm is membranous and tapered, the ventral arm sclerotized and tapered, differing markedly from those of T. nigromaculata Hering (1928 : 466). Trachyptena magna Hering is therefore accorded specific status. Stat.n.

Pseudomantria seminigra sp.n. (Figures 15, 61-63)

$ 19 mm.: Palpus, frons, vertex, patagia and prothorax orange buff; remainder of vestiture pale orange yellow (Figure 15). Upperside: fore wing pale orange yellow; hind wing fuscous, cilia pale orange yellow. Underside: termen, cilia and inner margin of fore wing and cilia of hind wing pale orange yellow; remainder of wings fuscous.

Genitalia (Figures 61, 62). Proximal half of dorsal margin of valve folded; vesica without: cornutus.

Externally similar to P. flava Bethune-Baker (1911), redescribed and figured by Hering (1928 : 466, pl. 75 : b) under the name Pseudomantria flavissima (syn.n.); differs in having both surfaces of the hind wing fuscous instead of yellow. Differs structurally in the genitalia in the simple, folded valve; in flava the base of the valve bears an ovate, spined process and the aedeagus is shorter and stouter (Figure 60).

A female from Tambura, S. Sudan measuring 20 mm. in wingspan, identical in colour and pattern with the holotype male, is provisionally associated with seminigra, but not regarded as a paratype. There is a thorn-like signum on the bursa copulatrix. (Figure 63).

In erecting Pseudomantria, Bethune-Baker (1911 : $72) overlooked the presence of a vein in the fore wing, stating vein 10 to be absent. Veins 7-10 (R2-Rs5) are on a long stalk arising from the upper angle of the cell; veins 8-+-9 (R3-++-R4) separate shortly before the termen. The antenna is lamellate, flattened dorso-ventrally and evenly scaled on all surfaces, not slightly serrate as

originally described.

UGANDA: Semliki Valley, Hot springs, 2750 ft., 28.viii-1.ix.1952 (Fletcher), Limacodidae genitalia slide No. 82, holotype 3.

SUDAN: Southern Bahr-el-Ghazal, Limacodidae genitalia slide No. 85, 1 9, provisionally associated.

DREPANIDAE

Spidia goniata Watson

Spidia fenestrata goniata Watson, 1957, Proc. R. ent. Soc. Lond. (B) 26 : 118, figures 8-10.

Spidia goniata Watson, Watson, 1965, Bull. Br. Mus. nat. Hist. (Ent.), Suppl. 3 : ror, figures 159-162.

RU WENZORI: Mobuku Valley, 7,800 ft., 29-3 1.xii.193 4 (Edwards), 1 3 (paratype) ; Nyinabitaba, 8,650 ft., 7-13.vili.1952 (Fletcher), 1 3 (holotype).

Distribution: Ruwenzori.

Drepanidae, Uraniidae 337

Spidia smithi (Warren) ? subsp. Phalacrothyris smithi Warren, 1902, Novit. zool. 9 : 488.

Spidia smithi Warren, Watson, 1965, Bull. Br. Mus. nat. Hist. (Ent.), Suppl. 3 172-175, pl. 9 : 305. UGANDA: Masaka (Edwards), 1 3. Distribution: Uganda; Congo.

: 106, figures

Isospidia angustipennis torulus Watson

Isospidia angustipennis torulus Watson, 1965, Bull. Br. Mus. nat. Hist. (Ent.), Suppl. 3 figures 222, 224, pl. 14 : 320.

UGANDA: Fort Portal, 5,000 ft., xii.1934-i.1935 (Edwards), 1 3 (paratype). Distribution: Uganda.

> 135,

URANIIDAE URANIINAE Dissoprumna erycinaria (Guenée) _ Micronia erycinaria Guenée, 1857, Hist. nat. Ins., Spec. gén. Lép. 10 : 30.

_ Dissoprumna erycinaria Guenée, Gaede, 1928, in Seitz, Gross-Schmetterlinge der Erde, 14 : 390, pleo7 : £

UGANDA: Mpanga Forest, 25.i.1935 (Edwards), 1 3.

Distribution: W. Africa, Senegambia to Cameroun; Congo (Leopoldville); Uganda.

EPIPLEMINAE Epiplema Herrich-Schaffer

The generic name Epiplema has been used in a very broad sense, following the usage in the _ existing literature; the author is well aware that the species nymphaeata Warren, triumbrata Warren and sporocosma sp.n. and the species barbara Warren, semipicta Warren and baliocosma sp.n. appear from the genitalia of both sexes to form distinct groups, but it is believed that new

_ genera for this subfamily should be founded in a revision rather than in a short faunal work.

Epiplema nymphaeata Warren : subsp. (Figures 23, 24, 68, 69) Epiplema nymphaeata Warren, 1902, Novit. zool. 9 : 490.

| RUWENZORI: Kilembe, 4,500 ft., 1 2; Namwamba Valley, 6,000 ft., 3 g, 1 9, all xii.1934- 1.1935 (Edwards); Mubuku Valley, 5,250-6,000 ft., 11.viii.1952 (Fletcher), 1 3, 2 9; Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 6 3, 3 2; Mubuku Valley, 78,000 ft., 29-31.x11.1934 (Edwards), 1 3, 2 9; Nyinabitaba, 8,650 ft., 7-13.vii.1952 (Fletcher), 1 9.

Distribution: Kenya (Mau Escarpment).

338 Ruwenzori Expedition, 1952. Volume I, Number 8

The type series consists of thirty specimens from 6,500-9,000 ft. on the Mau Escarpment in Kenya. The white ground colour of the upperside of the wings is very sparsely marked with bister; in only four specimens is the medial area of the fore wing and the postmedial fascia of the hind wing defined (Figure 23). _

In the Ruwenzori series only the female from Nyinabitaba (8,650 ft.) and a male and the female from the upper levels of the Mubuku Valley (7—8,000 ft.) match the type series. In the remainder, the upperside of the wings is irrorate with bister, the medial area clearly defined, often with dense bister patches developed in the discal area and at the inner margin, and the posterior half of the postmedial fascia of the hind wing is sharply marked (Figure 24).

In the male genitalia, the inner tapered process on the valve is broader-based in the Ruwenzori specimens than in the type (Figure 68). The female genitalia of the Kenya and the Ruwenzori series appear to be identical (Figure 69).

Epiplema sporocosma sp.n. (Figures 25, 73, 74)

3 20 mm.: Frons bister. Vertex white. Thorax and abdomen white suffused with pale pinkish buff. Upperside of wings cartridge buff lightly irrorate with drab and bister; proximal half of inner margin of fore wing suffused with pale pinkish buff; ante- and postmedial fasciae on each wing ochraceous tawny; medial area of each wing irregularly suffused with drab; terminal area of fore wing, between veins R4 and Cura, drab, edged proximally with interneural black spots (Figure 25).

Genitalia: Valve with two tapered processes, one from two-thirds ventral margin, one from near one-third ventral margin; vesica with three or four thorn-like cornuti (Figures 73, 74).

Closely related to E. triumbrata Warren (1902 : 491), which differs externally in the clean white ground colour of the wings and darker and more sharply marked pattern (Figure 26). In triumbrata the more caudal of the two tapered processes on the valve is placed medially in the basal third and the vesica has two cornuti, one thorn-like, one bifid at the apex (Figures 75, 76).

RUWENZzoRI: Mahoma River, 6,700 ft., 13 -16.viii.1952 (Fletcher), holotype labelled Uraniidae

genitalia slide no. 30, paratype labelled slide no. 18.

Epiplema barbara Warren (Figure 27)

Epiplema barbara Warren, 1899, Novit. zool. 6 : 10. RUWENZORI: Bwamba Pass (west side), 5,500-7,500 ft., xii.1934-1.1935 (Edwards), 1 3.

Distribution: Uganda; Malawi.

Epiplema baliocosma sp.n. (Figures 29, 30, 77-79)

3 24 mm.; 2 30 mm.: Termen of fore wing incurved between vein Rs and M3; termen of hind wing with short tails at veins Rs and M3, crenulate between. Vestiture dusky drab. Upperside: fore wing dusky drab; ante- and postmedial fasciae, broad at costa then becoming slender, and a short, arc-shaped fascia parallel with incurved part of termen, black edged with sparse ochra-

ceous tawny scaling; cilia cinnamon brown mixed with ochraceous tawny and fuscous. Hind

sh vated

| | |

Uraniidae 339

wing: proximal half drab to dusky drab; distal half a mixture of dusky drab, cinnamon brown and ochraceous tawny, conspicuous as a pale band distad of the postmedial fascia; transverse fasciae acutely angled in discal area but not extending to costa, black edged with ochraceous tawny; white, triangular subterminal spots, edged distally with black, one in each of the three interspaces between veins Rs and M3; a black subterminal streak in the interspace between veins M3 and Cuta; cilia as on fore wing. Underside of wings light drab striate with black; distal half of costa and apical area vinaceous buff, tornal area of hind wing ochraceous tawny.

Male genitalia (Figures 77, 78): Uncus bifid, each arm short, tapered and sclerotized. Arms of enathos blunt, not meeting. Mid-ventral margin of valve with broad, densely scaled, incurved process connected with dorsal margin by a slender /\-shaped, heavily sclerotized band, the dorsal extremity of which bears a short, digitate process. Vesica with two tapered cornuti.

Female genitalia (Figure 79): Ductus bursae dilate at one side medially and sclerotized; bursa copulatrix with a small, stellate signum.

Differs externally from the related E. semipicta Warren in its larger size and conspicuous, white, subterminal spots on the upperside of the hind wing and in the ochraceous tawny tornal area of the underside of the hind wing; differs structurally in the presence of a heavily sclerotized A -shaped bar across the valve and in the presence of two tapered cornuti on the vesica.

[KENYA] B. E. Africa: Mile 478 on Uganda Rly. [Molo, 8,065 ft.], 20.xi.1900 (C. S. Betton), Uraniidae genitalia slide no. 22, holotype J; E. Quaso, Masai, 22.x.1900 (C. S. Bettoi), 1 9.

RUWENZORI: Nyinabitaba, 8,650 ft., 7-13.vii.1952 (Fletcher), 1 9.

Epiplema arenosa sp.n. (Figures 28, 70-72) 3 19-22 mm.; 9 26 mm.: Fore wing lacking one radial vein. Hind wing lacking vein M2; veins At and A2 stalked; anal fold present in both sexes, more strongly developed in male. Wings without projections or tails. Male: Frons drab. Vestiture cinnamon buff. Upperside: wings cinnamon buff lightly irrorate with bister in medial area; base of costa on fore wing drab and subterminal area, between veins Rs and Cuta, marked with four interneural, bister spots in form

of an arc; anal fold on hind wing light buff. Underside of wings pinkish buff. Female similar, but lacking drab colour at base of costa on fore wing (Figure 28). Male genitalia, Figures 71, 72. Female genitalia, Figure 70.

Distinct among the Ethiopian Epipleminae in colour and wing shape, being reminiscent of certain species of Hydrelia in the Geometridae.

Placed tentatively in the genus Epiplema.

RUWENZORI: Bwamba Pass, 6,500 ft., xii.1934-i.1935 (Edwards), Uraniidae genitalia slide

no. 13, holotype 3. UGANDA: Toro, Mpanga Forest, 4,800 ft., 16.xi.1911 (S. A. Neave), 1 3.

[kenya] B. E. Africa: Mile 478 Uganda Rly. [Molo, 8,065 ft.,] 25.xi.1900 (C. S. Betton), 19

+.

340 Ruwenzori Expedition, 1952. Volume I, Number 8 Dirades angulifera Warren (Figures 31, 32)

Dirades angulifera Warren, 1902, Novit. zool. 9 : 489. KENYA: Mt. Kinangop, 8,500 ft., 25.x.1934 (J. Ford), 2 3. Distribution: Ethiopia, above 8,000 ft.; Kenya, above 6,000 ft.

Tentatively associated are four specimens from Mt. Cameroon, one from 5,000 ft., three from

7,400 ft. Represented on the island of Sao Thomé by Dirades angulata (Talbot, 1929), described as a Gathynia. Comb.n.

Pseudodirades sp.

RUWENZORI: Bugoye, 4,500 ft., 5—10.1x.1952 (Fletcher), Uraniidae genitalia slide no. 19, 19.

Externally similar to Pseudodirades lactea (Warren), figured by Janse (1932, pl. 1 : 11). Differs structurally from the female holotype of lactea in the genitalia.

LASIOCAMPIDAE

Lechriolepis sp.

RUWENZORI: Kilembe, 4,500 ft., xii.1934-3.1935 (Edwards), 1 9.

Closely similar externally to L. jacksoni (Bethune-Baker, t91t), known from Entebbe and Kampala; males of the Kilembe population are required to establish its identity.

Lechriolepis leucostigma (Hampson)

Chrysopsyche leucostigma Hampson, 1909, Trans. zool. Soc. Lond. 19 (2) : 131, pl. 4: 41. Lechriolepis leucostigma Hampson, Aurivillius, 1927, in Seitz, Gross-Schmetterlinge der Erde, U4: 200; ply 20°2k RUWENZORI: Bwamba Pass (west side), 5,500-7,500 ft., xii.1934-1.1935 (Edwards), 3 3.

Distribution: Ruwenzori.

Lechriolepis sp.

RUWENZORI: Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 1 3.

Philotherma leucocyma (Hampson) comb.n.

Anadiasa leucocyma Hampson, 1909, Trans. zool. Soc. Lond. 19 (2) : 131, pl. 4 : 31. Pseudolyra leucocyma Hampson, Aurivillius, 1927, in Seitz, Gross-Schmetterlinge der Erde, 14 2 264,opl. 37: ds RUWENZORI: Namwamba Valley, 6,500 ft., xii.1934-1.1935 (Edwards), 1 3; Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 4 3; Nyinabitaba, 8,650 ft., 7-13.vii.1952 (Fletcher), 2 3. Distribution: W. Uganda; Rwanda; Burundi; N. E. Tanzania.

Lasiocampidae 341

Placed tentatively in Pseudolyra by Aurivillius, but the structure of the genitalia appears to be congeneric with that of the type species of Philotherma, P. jacchus Méschler, 1887. Anadiasa leucocyma Hampson is therefore transferred to the genus Philotherma.

Euwallengrenia nom.nov.

The generic name Olyra Wallengren, 1865 is preoccupied by Olyra M’Clelland, 1842. Euwallen- grenia is proposed as a replacement name for Olyra Wallengren.

Euwallengrenia reducta sublineata (Walker)

Odonestis reducta Walker, 1855, List Lep. Ins. B.M. 6 : 1411.

Poecilocampa sublineata Walker, 1869, Proc. nat. Hist. Soc. Glasgow, I : 342. Olyra distantii Dewitz, 1881, Nova Acta Acad. Caesar Leop. Carol. 42 : 79. Olyra pallida Aurivillius, 1925, Ark. Zool. 17 A32 : 16.

Pachygastria niris Druce, 1884, Proc. zool. Soc. Lond. 1884 : 228, pl. 17: 6.

RUWENZORI: Bugoye, 1,200 m., 17.11.1948 (Holi), 1 Q in Naturhistoriska Riksmuseum, Stockholm; Kilembe, 4,500 ft., xii-1934~-i.1935 (Edwards), 1 3; Ibanda, 4,700 ft., 4-6.vii.1952 (Fletcher), 3; ibid., 4-12.ix.1952, I 3.

UGANDA: Fort Portal, 5,000 ft., xii-1934-4.1935 (Edwards), 3 3.

Distribution: Sierra Leone; Ivory Coast; Ghana; Nigeria; Togo; Angola; Central African Republic; Sudan; E. Congo (Leopoldville); Uganda; Kenya; Tanzania; Malawi. Represented in Rhodesia, Natal and Cape Province by the nominate subspecies.

Streblote fusca (Aurivillius)

Taragama fusca Aurivillius, 1905, Trans. ent. Soc. Lond. 1905 : 316, pl. 16: 8. UGANDA: Fort Portal, 5,000 ft., xii.1934-1.1935 (Edwards), 1 3. Distribution: Kenya; Uganda.

Streblote craterum Tams (Figure 34) Streblote craterum Tams, 1929, Bull. Hill Mus. Witley 3 : 176; T. A. Barns, 1923, Across the Great Craterland to the Congo, Figure 82, nos. 9, 14.

RUWENZORI: Mahoma River, 6,700 ft., 13-16.viii.1952 (Fletcher), 2 3; Nyinabitaba, 8,650 ft., 7-13.vii.1952 (Fletcher), 1 3.

Distribution: E. Congo (Leopoldville), Kivu; Rwanda.

In the two males from the Mahoma River in the lower level of the montane rain forest, the

vestiture is tawny; the fore wing is entirely tawny proximal of and irregularly banded tawny distal of the medial area (Figure 34), matching one of the six male specimens from the Rugege Forest in Rwanda, the type locality. The male from Nyinabitaba in the upper levels of the montane rain forest is rather greater in wingspan than those from the lower levels, measuring 38 mm. against 34-35 mm. and is intermediate in colour between those and the typical series.

:

342 Ruwenzori Expedition, 1952. Volume I, Number 8 Streblote graberii (Dewitz) : subsp. (Figure 36)

Pachypasa graberii Dewitz, 1881, Nova Acta Acad. Caesar Leop. Carol. 42 : 72, pl. 1 : 3. Taragama guinearum Strand, 1912, Arch. Naturgesch. 78 At : 85, 88, 91.

RUWENZORI: Mahoma River, 6,700 ft. [montane rain forest], 13-16.vili.1952 (Fletcher), 5d, 1%.

The species is represented in the collection of the B.M.(N.H.) by three typical examples, one male and two females, from Bitji, Cameroun. Short series of uniformly marked specimens from Rwanda, W. Uganda and Tanzania (Usambara), agreeing in structure with but differing in pattern from the Cameroun examples, suggest that some degree of geographic variation may occur. In the Ruwenzori males the russet brown fore wing is less densely irrorate with fuscous and the hind wing is pinkish buff, only a little suffused with fuscous terminad (Figure 36); in the fore wing of the female the ante- and postmedial fasciae are defined in fuscous and the area distad of the postmedial fascia is markedly less heavily suffused with fuscous; the hind wing is tilleul buff at base, darkening terminad.

Streblote distinguenda (Aurivillius) : subsp.

Taragama distinguenda Aurivillius, 1905, Trans. ent. Soc. Lond. 1905 : 315, pl. 16 : 13. RUWENZORI: Kilembe, 4,500 ft. [savannah-cultivated region], xii.1934-1.1935 (Edwards), 1 9.

Differs from the nominotypical distinguenda from South Africa in the paler colour of the wings. The ground colour of the fore wing is cinnamon, that of the hind wing cartridge buff at base shading to cinnamon at the termen. There are similar examples in the B.M.(N.H.) from Uganda (Kampala) and from Tanzania (Bukoba).

Streblote eccrita sp.n. (Figures 35, 80)

3 38