COSMOTRICHE. 
By Dr. K. Grunberg. 
407 
to the proximal margin; behind it a submarginal dark undulate line. Under surface uni-coloured reddish greyish- 
brown or with very faint traces of a darker discal band. —- In decisa Wkr. ( = inobtrusa Wkr.) (33 b) the colouring decisa. 
is monotonously greyish-brown, abdomen and hindwing almost grey, the reddish tint is almost entirely absent 
also on the forewing, the discal spot is dark brown. ■—- Larva dark brown, striped blackish, with reddish lateral 
spots and lateral hairtufts of black mixed with grey, being the longest on the 1st segment. Dorsal tuft on the 
first segment black, on the 2nd grey, on the 3rd to 10th black, short, V-shaped, also on the lltli long, black. 
Cocoon whitish, dense, parchment-like. — India from the Himalaya to the Sunda Islands. 
C. castanea Hmps. (33 b). A body and forewing light chestnut-brown, hindwing dull, brown. Forewing castanea. 
with 2 small, grey discal spots, the oblique band grey, rectilinear, not bent towards the proximal margin. The 
$ is more reddish, the costal part of the hindwing red-brown. Sikkim. 
C. signata Mr. (33 b). Head, thorax and forewing dark red-brown, abdomen and hindwing greyish- signata. 
brown. Forewing at the proximal margin with a broad triangular scaled continuation, the white discal spot 
narrow, strewn with light reddish scales, the upper small spot distinct, prediscal line indistinct, postdiscal line 
more distinct, blackish, undulate, below the discal spot removed somewhat proximally, submarginal line less 
distinct. Hindwing with faint traces of a dark discal band. Under surface coloured as above, forewing with an 
indistinct white discal spot, both wings with a blackish discal band disappearing towards the proximal margin. 
Sikkim: Darjeeling. 
C. isocyma Hmps. Size of castanea (33 b). Dark red-brown. Forewing with a darker discal spot, an isocyma. 
indistinct prediscal undulate line and a more distinct, uniformly bent, blackish postdiscal line extending from 
the apex to the proximal margin. Hindwing flesh-coloured with a darker costal margin. Assam: Naga Hills. 
C. pyriformis Mr. (33 b). Head, thorax and forewing dark ferruginous, abdomen and hindwing with pyriformis. 
a more reddish tint. The white discal spot in the forewing above narrow, beneath broad, guttiform or pyriform, 
the black prediscal line distinct, very slightly undulate, directed somewhat distally, the postdiscal line running 
at the costal margin close before the apex to the middle of the proximal margin, where it almost touches the 
prediscal line, distinct, black with a white distal border. Submarginal line broken up into a row of oblicpie 
transverse streaks. Beneath lighter ferruginous with an indistinct, dark discal band on both wings. North 
West Himalaya. Sikkim: Darjeeling. 
C. divisa Mr. (33 a). A beautiful species of bright colours with a remarkably large, silvery white divisa. 
discal spot strewn with brown in the forewing. Head and thorax lighter or darker red-browm, like the costal 
part of the forewing, which, however, in a specimen from Labuan is of a bright, light golden-brown colouring; 
a blackish prediscal line indistinct. The postdiscal line beginning at the apex or close before it, extending rather 
rectilinearly to the middle of the proximal margin; the marginal half behind it whitish-grey with a reddish 
or delicately violet tint, the margin often again somewhat darker. Abdomen light brownish-grey, somewhat 
reddish, like the larger proximal half of the forewing which is rather distinctly separated from the darker red- 
brown costal part. —- To this species belongs sulphurea Auriv. having hitherto been placed to laeta Wkr. and sulphurea. 
occurring from North India to East Asia and Japan, in which the basal inner-marginal area of the forewing 
is bright ochreous yellow (comp. Vol. II, p. 165, t. 26 g as laeta). Hampson already mentions the yellow colouring 
at the proximal margin in specimens from Sikkim, and sulphurea undoubtedly belongs according to its whole 
character to divisa. In the specimen from Labuan the proximal margin of the forewing is likewise golden yellow. 
— From the Sunda Islands and Ceylon across India and China to the Amur District and Japan. The typical 
form without the yellow colouring of the proximal margin in the forewing seems only to occur in Ceylon. 
C. purpurascens Hmps. (32 d). Head, thorax, forewing and costal part of hindwing deep dark red- purpuras- 
brown, abdomen and proximal part of hindwing light greyish-brown with a reddish tint, the dark colouring ecus. 
of the costal margin distinctly defined. Forewing with a dark discal spot and a blackish postdiscal line at the 
costal margin close before the apex to the middle of the proximal margin. Hampson’s presumption that this 
species might be the A of divisa Moore, is probably incorrect, as in the A of the form sulphurea Auriv. of divisa 
the large, white discal spot is very distinctly prominent. Ceylon. 
C. ochreipuncta Wil. A (32 d): forewing red-brown with a small light yellowish discal spot, the oblique ochreipunc- 
band blackish, proximally finely bordered with a violettish-grey, from the costal margin close before the apex ta - 
to the middle of the proximal margin; the distal half of the wing behind it lighter and speckled with a violettish 
grey; submarginal line blackish, dentate. Hindwing brown, beneath the same, basal parts in both wings more 
reddish, oblique band of forewing scarcely noticeable, hindwing with a slight dark discal shade. $ above less red, 
beneath without any reddish tint. Formosa. 
