52 
PSEUDOSPHINX DISCISTRIGA. 
WLK. 
References :—WIk. Cat. viii, p. 209; Moore, Lep. Ceyl. ii, pl. 73, figs. 1, ta, 16 
(pupa and larva); C. & S. no. 176. Diludia melanomera, 
Butl. P. Z. S. 1875, p. 13; C.& S..no. 177. Diludia macro- 
mera,Butl. A. M. N. H. (5) x, p. 435. Diludia grandis, Butl. 
P. Z. S. 1875, p. 260; C. & S. no. 175. Diludiarubescens, 
But]. P. Z. S. 1875, pp- 260, 6a3; C. & S. no. 178. Macrosila 
obliqua, Wlk. Cat. viii, p. 208; C. & S. no. 174. Anceryx 
nicreta, WIk. Cat, xxxi, p. 36; C & S. no. 179. Diludia vates, 
Butl, P. Z. S. 1875, p. 13; C. & S. no. 180. Anceryx pinastri, 
WIk. Cat. viii, p- 223. Hmpsn Faun. Br. Ind. Moths i. p. 105, 
no. 169. 
Classification :—Order, LEPIDOPTERA, Sub-Order, HETEROCERA, 
Family, Sphingide. 
Description. 
Larva.—The general colour of the caterpillar is a pale 
lemon yellow or sap green. The first three segments are stud- 
ded with whitish specks raised in relief on the surface. The 
last segment of the body and the horn are also similarly studded 
with these raised dots of colour; a longish red horn on the 
last segment but one is also studded with the whitish specks 
of colour. Head green with a diagonal transverse stripe run- 
ning from top of head outwards on either side. On the.dorsal 
surface of the body are a series of green lateral lines starting 
from the centre of the dorsal surface and running forwards and 
outwards down over the side of the body. On the portions of 
these lines extending down the flanks of the insect they are 
bordered for a short distance by short purple-red lines above, 
and below by a white line along their entire length. From the 
base of the horn is projected on either side outwards and for- 
wards a whitish line bordered .with purple. The prolegs are 
reddish purple. Clasper legs white. The above description 
is that of a three parts grown larva. The colours darken 
slightly as the caterpillar matures, and in the case of one 
specimen I kept the white, green, and purple diagonal streaks 
sup the two sides of the dorsal surface merged into reddish 
