298 
Mr. G. F. Hampson's 
four pairs of prolegs, the 6th somite being without prolegs ; the 
cast skins of the head are attached to a long tuft of hair project- 
ing forward from 1st somite, so that the number of moults can be 
counted by the number of skins present. 
The full-grown larva is snow-white covered with a down-like 
detachable substance, with slight creamy tinge below ; the hairs 
white except five or six long black hairs on thoracic somites ; head 
bufP marked with brown striae ; a dorsal black mark on 1st somite, 
partly hidden by the head-bearing tuft which after the last moult 
bears five head-skins. The larva progresses with a jerky motion ; 
it forms a flap-like cocoon by biting off pieces of rotten wood and 
bark and interlacing them with its long hairs which are left pro- 
jecting ; before fastening down the flap it rubs its head against it 
for a long time and with much difi&culty detaches the tuft and head- 
skins and attaches them to the side of cocoon. (G. C. Dudgeon.) 
NOCTUID.^. 
TRIFIN^. 
Heliothis hyalosticta, n. sp. 
$ with large hyaline spaces on forewing below the costa 
and in the cell. Forewing irrorated with brown ; traces of a 
waved subbasal line ; some dark specks on costa ; a spot on disco- 
cellulars ; a postmedial curved series of specks on the veins and 
marginal series. Hindwing paler ; a dark discocellular lunule ; an 
indistinct curved postmedial line ; the outer area slightly darker. 
Underside with the discocellular spot of forewing deep black. 
Hah. Karachi (Swinhoe). Exp. 22 mm. Type in B. M. 
Euplexia plumbeomarginataj n. sp. 
$ . Head and collar ochreous, the latter tipped with leaden- 
grey ; thorax leaden-grey and ochreous ; abdomen leaden-grey, 
ochreous at base. Forewing ochreous white slightly irrorated with 
fuscous ; some black specks at base ; a large oval black patch from 
middle of costa to below vein 2, embracing the large U-shaped 
renif orm with its inner arm very broad ; the patch is continued to 
inner margin as an oblique line and has some diffused rufous on its 
outer edge ; an irregularly dentate submarginal black line with the 
area beyond it leaden -grey except for an ochreous apical spot. 
Hindwing fuscous with traces of pale postmedial band ; both wings 
