ACANTHARCTIA. By M. Gaede. 
101 
In the two following species the <$ has light, the $ dark hindwing s. 
E. dissimilis Di.st. (14 i). $ thorax and forewing yellow, abdomen orange with black central spots, dissimilis. 
Forewing at the cell-angles with black dots. Hindwing yellow, at the distal margin greyish-brown. $ orange- 
yellow instead of pale yellow. Hindwing almost black, only the fringes light. 36 mm. Transvaal. 
E. gynephaea Hmps. (14 d). $ thorax and forewing yellow. Abdomen orange with black dots. Veins gyne-phaea. 
of forewing fine black. Hindwing yellowish-white. $ with a broader forewing. Orange-brown, margins orange- 
yellow. At the cross-vein a black dot. Hindwing blackish-brown. At the base and on the cross-vein orange- 
yellow. 30 to 33 mm. East Africa, Mashona Land. 
In the following species the hindwing is orange-y ellowwith a black marginal 
band. 
E. heterogenea Brtl. $ (14 e). Body orange-yellow, abdomen with black segmental margins. Forewing heterogenea. 
orange-brown with a fine dot at the cross-vein, in the distal area somewhat darker. Hinclwing in the cell as 
far as the costal margin and narrowly at the hind-margin orange, the rest black. 30 mm. Angola. 
E. nigrocastanea Rothsch. (14 e). $ thorax and forewing orange-brown. Abdomen above orange nigrocasta- 
with black dorsal dots. Apex and under surface blackish-brown. Hindwing orange-yellow, distal margin broad nea - 
black. 36 mm. Central Africa. 
E. melanoxantha sp. n. (14 e). $ head, thorax, abdomen above orange with black dorsal dots, apex melanoxan- 
and under surface blackish-brown. Forewing as far as the cell-end orange, the rest black; the border is somewhat tha ‘ 
faded. Hindwing somewhat broader black than in nigrocastanea. 38 mm. East Africa. This species and the 
preceding one may only be $ forms of heterogenea $ . 
E. internigralis Hmps. (14 d) is the reverse of the linea-lemniscata group. Thorax yellow with blackish- internigra- 
brown stripes. Abdomen orange with black segmental margins. Forewing at the costal margin and hind-margin 
broadly and on the veins excepting the cross-vein more narrowly yellowish-white, otherwise ochreous-brown. 
Hindwing somewhat lighter, veins as in the forewing. In the $ the hindwing is darker with yellowish veins. 
38 mm. Transvaal, Natal. 
4. Genus: Acautliarctia Aur. 
Proboscis small, palpi porrect, $ antennae bipectinate. Head with a horny plate. Anterior tibiae short 
with a large double claw. Hind tibiae with 1 pair of spurs. Neuration as in Spilosoma. Type: vittaia Aur. 
A. metaleuca Hmps. (14 e) is yellowish-white. Abdomen orange with black segmental margins. Fore- metaleuca. 
wing with radial brown stripes in and below the cell and between the veins. Hindwing white. 36 mm. East 
Africa. 
A. latifasciata Hmps. (14 e). As metaleuca, but the ground-colour is ochreous-yellow, with a similar latifasciata. 
marking on the forewing. Hindwing, however, likewise with brown radial stripes, in the $ broader. 38 mm. 
Transvaal. 
A. tenuifasciata Hmps. (13 h). Head orange, thorax white; abdomen at the base white, otherwise tenuifasda- 
orange, on the dorsum with brown margins. Forewing white. Costal margin fine orange, between the veins ia - 
narrowly brown. Hindwing of a pure white. 30 mm. East Africa, Congo. 
A. afriramosa Hmps. (14 d) is yellowish-white, abdomen above pale orange-yellow. Forewing with atriramosa. 
black lines on the veins beginning from the centre of the subcostal vein, on vein 6, on the median vein, and 
veins 1 to 4. Hindwing white. 40 mm. Uganda, Rhodesia. 
A. vittata Aur. (14 f). Dingy white; abdomen orange-yellow with black dorsal dots. Forewing with vittata. 
feeble brown streaks in the discal and sub median folds. Hind-margin of hindwing feebly yellowish. 38 mm. Natal. 
A. radiosa Pag. resembles vittata. Thorax white, abdomen above red with black segmental margins, radiosa. 
Forewing silvery white. Costal margin reddish. Median vein and branches yellowish with black dots which 
are also in the distal part of the costal margin and at the cross-vein. Fringes yellowish-white. 25 mm. North 
East Africa. A doubtful species, since it was described from a damaged specimen. 
A. flavicosta Hmps. (= aurivillii Brtl.) (15 b). The whole body is pale orange-yellow, abdomen broadly flavicosta. 
edged with black. Wings of a pure white. Costal margin of forewing and fringes orange-yellow, hind-margin 
yellowish. 36 mm. Mashona Land. 
A. rubrifemora B.-Bak. Body and wings white. On the forewing all the veins are greyish-brown, rubrifemo- 
Hindwing spotless. Legs white, femora above red. 45 mm. LTganda. 
A. nivea Aur. (14 g) is very similar. Wings and thorax white. Abdomen orange with black segmental nivea. 
margins. Forewing at the costal margin and hind-margin somewhat yellowish. 34 mm. Cameroon, Congo. 
