Fubl. 10. X. 1912. 
TRISULA; AORONICTA. By W. Warren. 
37 
C. nocturnus Hmps. (5 e). $ Forewing grey, with pale brown dusting and suffusion, and tinged with nocturnus. 
rufous, especially on outer area; a fuscous patch at base of inner margin; a broad band of rufous mixed with 
black from costa to vein 1 before the inner line, which is indistinct, double, waved, and rufous; outer line 
double, oblique from costa to vein 5, then incurved and slightly waved; followed above vein 6 by a dark 
diffuse streak to subterminal line, and crossed by a black slender streak from reniform to subterminal line 
above vein 4; subterminal line preceded by darker suffusion, pale and waved, with a black streak from it to 
termen above vein 5 and another below vein 4; a row of small black terminal spots; fringe chequered dark 
and light; orbicular stigma small, round, faintly defined by brown; reniform a black discoidal bar; hindwing 
dark fuscous with a slight reddish gloss; the $ is greyer with less rufous tinge; forewing with inner area black 
from costa to submedian fold, the outer from costa to vein 3. Ceylon. A large species without any close affinity. 
8. Genus: Trisula Moore. 
Tongue strongly developed; frons flat, with a vertical central furrow ending in a slight projecting point; 
palpi stout and thick, upturned, the second segment thickly scaled, the third short, pointed; antennae of 
with rather long fascicles of cilia; head and thorax clothed with hair; the metathorax and first two segments of 
abdomen with flattened tufts; pectus and tibia woolly; eyes not hairy. Larva with sparse tufts of long hair; 
pupa in a cocoon covered with rubbish. Type T. variegata Moore. 
T. variegata Moore (5 h). Forewing pale fawn colour, dusted with darker; at base and below median variegata. 
suffused with rufous; subbasal, inner and outer lines double, brownish, becoming more concise towards inner 
margin; the inner sinuous, blackish below vein 1; the outer oblique outwards from middle of costa to vein 5, 
then lunulate dentate, incurved to vein 2, thence vertical, its oblique upper course followed by a parallel thick 
coal-black streak, which runs out along vein 5 to termen, before which it is forked; from vein 5 to 3 the teeth 
of the inner arm are rufous and acute, of the outer blackish; along vein 3 the black line passes inwards and 
the inner arm becomes black, while the outer is rufous, becoming black at inner margin; beyond the black 
streak a brown red triangle, its outer edge dentate, becoming below middle a series of rufous lunules, the pale 
submarginal line forming its outer limit; terminal spots black; fringe fawn colour and grey; no stigmata; hind¬ 
wing whitish, with a large round diffuse black cellspot, and sinuous blackish outer shade, much broader in $ 
than (J, with traces of the dark outer line preceding it on the inner margin only; terminal area below vein 6 
bluish-grey in the $, fawn colour, or fuscous in the $; fringe fawn colour. Larva reddish-brown with nu¬ 
merous blue tubercles, the thoracic segments grey; head black with the face pale; feeding on Ficus religiosa. 
Occurs in S. India and Ceylon. 
T. dudgeoni Hmps. (8 k). Forewing in basal area buff, with velvety black patches on costa and inner duclgeoni. 
area and a streak on median nervure, bounded by a waved black line; the rest of the wing leaden grey; some 
pink suffusion in median area below cell; an ochreous stigma at its end; outer line strongly dentate, black 
on a brown ground, preceded in costal half by an oblique diffuse black band; submarginal line pale preceded 
by a black shade, angled inwards on vein 5; hindwing greyish fuscous, with traces of cell spot and outer and 
subterminal lines, these being more distinct on underside. Described from a single $ from Bhutan. 
T. ( ?) boarmoides Walk. Forewing grey brown; inner and outer lines double, sinuous; the outer joined boarmoides. 
by an oblique streak from apex; traces only of waved subbasal, median, and submarginal lines; a series of dark 
terminal spots; hindwing pale in basal half, fuscous brown in the outer, with dark spots along termen. N. India. 
The type is a $ in bad condition, and may not even belong here at all; the terminal segment of the 
palpi is longer than in typical Trisula. 
9. Genus: Acronicta Tr. 
Antennae of £ pubescent; head, thorax, pectus, and abdomen densely haired; the abdomen shightly 
tufted near base, roughened laterally; palpi with the third segment usually short; eyes naked; tongue well 
developed; vein 5 of hinclwing weak, curved at base, from lower third of discocellular. Larva adorned with 
long, generally scattered, hairs; resting in form of a horse-shoe; tubercles small. Pupa in cocoon in wood; 
the segmental margins smooth. Eggs deposited singly. Type A. leporina L. 
A. nignvittaHmps. (8 i) Forewing grey suffused with brown and dusted with black; inner and outer lines nigrivitta. 
black, double; the inner waved, inangled on vein 1 and at inner margin; the outer excurved above and dentate; 
claviform stigma large and distinct, reaching cell and rounded; orbicular and reniform large, outlined with 
black, the former round, the latter with dark, centre; median shade forming an oblique black bar from costa 
to reniform; subterminal line obscure, defined by the dark dentate shade preceding it; a strong black streak 
in submedian fold, curved clown below claviform stigma, then straight to termen; hindwing brownish luteous, 
darker terminally; the veins dark; fringe pale. Described from a single $ from the Nilgiri Hills, S. India. 
A. fasciata Moore (= nigrostriata Pag.) (5 e). Forewing whitish grey irrorated with darker grey; fasciata. 
the terminal area, except the extreme termen and inner margin below vein 1, suffused with olive fuscous; inner 
and outer lines black, double; the inner waved, oblique; the outer outcurved, lunulate dentate; stigmata with 
dark centres and outlines, the median shade diffuse and dark from costa across reniform; a broad black olive- 
suffused streak from base along submedian fold to termen, often interrupted beyond inner line; submarginal 
XI 5b 
