36 
GOENYCTA; TYCRACONA; CORYTHURUS. By W Warren. 
sinens. 
accreta 
conjectu- 
ralis. 
curtails. 
veiguttata. 
obliqua. 
T. sinens Walk. (5d). Forewing white dusted with grey green: the lines and shading grey green: 
inner and outer lines double, grey green, diffuse and obscure, the outer more clearly lunulate-dentate, especially 
the outer arm; median shade also double, filled up with grey green at costa to form a blotch, reaching across 
cell; the inner line is preceded and the outer followed by an interrupted grey green band; on submedian fold a 
black spot at base followed by a wedge-shaped black streak, a black mark on outer arm of median shade, 
and a triangular black mark on outer line; vein 2 ending in a black dash; submarginal line diffusely white, 
followed by a narrow grey green shade close before termen, which is marked by shallow greenish lunules between 
the veins: fringe white and green; hindwing white with faint traces of median and outer grey green lines; the 
termen towards apex clouded with grey green; vein 2 ending in a black spot; fringe white. The type described 
was from Moulmein. Rurma and the typical form occurs also in S. India, the Nilgiris, Rombay, Travancore; a 
larger form, ab. accreta ah. non. (= ab. 1 , limps.) (5 d), from N. India, Darjiling and the Khasia Hills, — 
has the markings much better developed, especially the black scaling along submedian fold; the Sikkim specimen 
with a large dark green cell spot on underside of hindwing. 
T. conjecturalis Swinh. (= sinens var. Walk. 1862 nee Walk. 1857) (8i). Forewing pure silvery white, 
with slight reddish brown dusting; a subbasal blackish spot on costa, a black streak, diffused below, curved 
from base of costa to below cell, then upwards to median vein at the brown inner line, which is indistinctly 
double, waved, and oblique; an obliquely curved black median line with a diffuse brown band beyond, from 
costa to vein 1, emitting a strongly marked oblique black fascia to outer edge of outer line on submedian 
fold: reniform a slight dark lunule on the black band; outer line double, the arms far apart, the outer with 
black points on it, bent outwards below costa, then denticulate, incurved below vein 3; a brownish bar from 
costa beyond it; subterminal line double, the inner arm brownish, indistinct, irregularly waved, from the brown 
bar to submedian fold; the outer arm with some brownish marks; a row of small black terminal spots; that in 
submedian interspace wedge-shaped; fringe brown and white; hindwing white suffused with brown; some slight 
dark terminal lunules; fringe white with pale brown spots; in the ab. curtails ah. non. (= ab. 1 , Hmps.) the 
dark median band does not extend below the reniform stigma. Recorded from N. Kanara, Karwar, and 
Rombay; Rangoon, Rurma; Sarawak and Sandakan, Borneo. 
5. Genus: Goenycta Hmps. 
Differs from Thalatha Walk, in the frons having a rounded prominence with a corneous plate below 
it: the antennae of ? (the only sex known) ciliated; the abdomen with strong dorsal crests; fore wing elongate, 
the termen faintly dentate at vein 4. Type G. niveiguttata Hmps. 
G. niveiguttata Hmps. (5e). Forewing black; the costa and inner margin marked by large white patches 
with black dots in middle at the place of the usual inner and outer lines; a third spot on costa close to base; 
submarginal line denoted by fine interrupted marks; hindwing whitish tinged with grey, especially along terminal 
area. Described from a single ? from Sikkim, N. India. 
6. Genus: Tycracona Moore. 
Differs from Goenycta Hmps. in the frons being simply rounded; the palpi obliquely porrect upwards, 
the second segment longer and broader, the third short and deflected; the antennae of cd simple, lamellate 
thorax, abdomen, and wings smoothly scaled, the usual markings indistinct: forewing with all three margins 
slightly convex. Type Tycracona obliqua Moore. 
T. obliqua Moore. (5e). Forewing pale grey covered with dark olive grey scales, thickest at termen, 
lines blackish, much interrupted, conversely edged with whiter, the outer obscurely dentate; subterminal line 
indicated by a dark shade preceding it which is dentate inwards; stigmata white partially black-edged, the 
orbicular round, the reniform lunulate; an oblique black streak from middle of costa to end of cell, touching 
reniform, and joining horizontal black streak between veins 4 and 5, reaching termen at vein 4: hindwing 
brownish fuscous, paler basewards. N. India: Sikkim, Bhutan, Assam. 
7. Genus: Corytlmrus Hmps. 
Tongue fully developed; frons smooth; palpi upeurved, the second segment short and slightly fringed 
with hair in front; the third very long, in the cd tufted with very long hair on inner side and recurved over 
the head; antennae of cf ciliated; the prothorax and metathorax with slight crests: abdomen with dorsal series 
of crests, in the cd with a cylindrical tuft of very long bristly hair from extremity; forewing elongate, the 
apex blunt, the termen evenly curved and slightly crenulate; neuration normal. Type C. nocturnus Hmps. 
