CASAMA; DASYCRIRA. By Dr. M. Hering. 
165 
Rh. crenulata B.-Bak. Body nut-brown. Forewing sepia-brown, with an antemedian and a median crenulata. 
grey spot at the costal margin and a similar one below the origin of vein 2; a velvety brown basal line, a 
similar median line which is double in front and separates the grey spots. Cross-vein with a pale macula bordered 
by dark. Postmedian line velvety brown, undulate, between the veins 6 to 9 distally bent; a subterminal series 
of dark red-brown internerval spots, between the veins 4 and 7 only marked as small dots; this series is parallel 
to the post median line. A terminal line is interrupted at the veins. Hindwing whitish grey, postmedianly and 
at the margin brownish. Expanse 53 ($) to 74 ($) mm. North-Eastern Rhodesia. 
Rh. mintha Faroe. Smaller and redder than the preceding species, postmedian line on vein 3 incurved, mintha. 
hindwing with a distinct median line. Expanse only 32 mm. British East Africa. 
67. Genus: Casama Wkr. (Thiacidas Wkr.). 
This species has already been dealt with in the Indo-Australian Lymantriidae. 
C. vilis Wkr., being distributed over South India, is said to occur also in Arabia, Somaliland, and vilis. 
Abyssinia. Cf. Vol. N, p. 317, pi. 39 f. 
68. Genus: Oasycliira Steph. 
Hind tibiae with 2 pair of spurs, anterior tarsi covered with long hair and scale-pencils, hinder tarsi 
without them. Tibial blade of anterior tibiae short, not distally bent. Forewing with an accessory cell from 
which vein 10 rises, 9 and 8 being forked, with 7 mostly from the same place, 6 only slightly separated from 
the accessory cell. In the hindwing 6 and 7 are forked or rise from the same place, vein 4 nearer to 3 or forked 
with it. The 3rd palpal joint is often hidden beneath the hairing of the 2nd. The distinction of this genus from 
Laelia is often very difficult in much flown specimens. 
D. fusca Wkr. (= tephra H,-iSchdff., subviridis Wkr.) (23 e). Abdomen without dorsal tufts, forewing fusca. 
at the base and in the centre somewhat tinged with greenish, which is often difficult to distinguish in old 
specimens. The antemedian and postmedian transverse lines approach each other behind the cell, so that the 
greenish median area is narrowed there. Before the margin a row of blackish crescents. Hindwing blackisli- 
brown with a dark spot on the cross-vein. A in the Berlin Museum (and 1 $ in the Stockholm Museum ? 
[according to Aurivillius]) exhibit between the terminal and postmedian lines besides a dark subterminal 
line. The postmedian line is less dentate, the antemedian line is broader, almost straight, running across the 
cross-vein, so that the ocellus on it disappears. Hindwing uni-coloured dark brown. The forewing apparently 
does not exhibit a greenish tinge. Beneath the hindwing has a double postmedian transverse line instead of 
the single one; in case it be a distinct species, it may be named; aurivillii sp. n. (23 e). Cameroon to the Cape aurivillii. 
Colony. B type of aurivillii from the Cape in the Berlin Museum. 
B. caeruleifascia Holl. (23 cl). Forewing dark brown with an almost straight postmedian dark transverse caeruleifas- 
line which, however, is somewhat removed towards the base below the cell, a subterminal broad band of silvery 
blue scales, which may often be partly obsolete, the most distinct at the hind-margin. A similarly coloured 
marginal line is narrow and composed of small dots. Hindwing blackish-brown, beneath with a spot on the 
cross-vein and 1 or 2 indistinct postmedian transverse lines. — In orihogramma form. nov. (23 e) which may orthogram- 
be a distinct species, the postdiscal transverse line is mostly double, the proximal line towards the base not ma - 
incurved behind the cell; the broad subterminal blue band is extinct, the terminal blue dots are not on the 
margin, but a little before it, and the species is somewhat larger and in the forewing more brown. type from 
Mokundange, $ type from Lolodorf (Berlin Museum). Both the forms fly at the same habitats. Cameroon. 
Ogove. 
D. caeca Plotz (= nubilata Holl.) (23 d) must be similar to the preceding species; in the description, caeca. 
however, the silvery blue marginal scales of the forewing are not mentioned; antemedian line apparently absent. 
Expanse: 35 mm. Cameroon, Gabun. 
D. albilinea Holl. (23 e). Like the preceding species, the straight postmedian band whitish, distally albilinea. 
margined with dark. Cameroon, Gabun. 
D. robusta Wkr. According to the insufficient description the body is above brown, with some white robusta. 
hairs, wings brown with many irregular whitish markings, most of them on the forewing. Under surface whitish. 
Expanse about 30 mm. Sierra Leone. 
D. fumosa Holl. is like albilinea (23 d), but the white line of the forewing is here dark brown. Expanse: fumosa. 
35 mm. Ogove. 
