1896. ] FROM NYASA-LAND. 847 
137. LEPTOSOMA APICALE. 
Nyctemera apicalis, Walker, Cat. Lep. Het. ii. p. 895 (1854), 
@ 2, Deep Bay, May 16th, 1895. 
“ Light yellow ova” (KR. C.). 
138. SPILOSOMA AURICINCTUM, sp.n. (Plate XLII. fig. 6.) 
Nearest to S. purum (Alpenus purus), but easily distinguishable 
from the fact that the head and the collar are bordered at the back 
with bright ochreous; the primaries are more produced, the costal 
margin being longer and the black dots are few, small, and confined 
to the base and costal area; the secondaries only show three 
conspicuous black spots in the form of a triangle, the apex of which 
is represented by a spot at the end of the cell and the base by two 
submarginal spots; primaries below immaculate, but secondaries 
as above. Expanse of wings 44 millim. 
9, Fuleriva hills, 2000 feet alt., Deep Bay, March 5th, 1896. 
This species and S. purum are strikingly unlike the other Ermine 
Moths from the fact that both extremities of the bright golden- 
ochreous black-dotted abdomen are snow-white. Our examples of 
S. purum from British East Africa show no trace of the dorsal 
black dots, but otherwise are typical. 
139. AROA THRMINALIS. 
Aroa terminalis, Walker, Cat. Lep. Het. iv. p. 794 (1854). 
3, Kondowi, 4000 feet alt., Nyika, Feb. 21st, 1896. 
Walker’s description, having been based upon a badly rubbed 
and barely recognizable specimen, is utterly useless for the iden- 
tification of the species; I therefore redescribe the insect from 
Mr. Crawshay’s beautiful male example :—Primaries above deep 
yellowish testaceous or bright mustard-yellow; a paler central 
band with widely bisinuated outer edge, expanding within the 
cell to enclose a conspicuous rounded blocd-red spot; a pale 
band crossing the disc near the outer margin, its inner edge bi- 
sinuated, its outer edge correspondingly biundulated ; fringe very 
slightly paler than the ground-colour ; secondaries deep orange- 
ochreous with bright golden-yellow fringe; antenne yellow, with 
vinaceous brown pectinations; body ochreous, deepest on the 
abdomen: under surface bright saffron-yellow, the primaries 
irrorated with smoky brown scales towards apex forming two short 
divergent streaks; legs hairy, lemon-yellow. Expanse of wings _ 
33 millim. 
Kondowi, 4000 feet alt., Nyika, Feb. 21st, 1896. 
I believe the specimen noted (P. Z. 8. 1896, p. 185) as Lopera 
crocata var.? is probably a very badly discoloured and faded example 
of this species. 
140. AROA BISTIGMIGERA, sp. n. (Plate XLII. fig. 7.) 
3. Nearest to A. clara: upper surface dead golden, or dull 
ochraceous, suffused with vinaceous greyish ; fringe deep grey ; 
Proc. Zoou. Soc.—1896, No. LV. 
