DUOMITUS LEUCONOTUS, Walker. 429 

Indian Region we have, however, little on record save the des- 
criptions of the moth, in some -cases both the @ and ? ofa 
species having been described, in others the description of the 
6 or the @ only being available. During the last few months 
(1903) I have had an opportunity here in Calcutta of working out 
a portion of the life-history of one of the other known species of 
Duomitus, that bearing the name of .D. leuconotus, Walker, and 
my observations are recorded below. 
Description. * 
Neither larva nor pupa appear to have been previously 
described. ; 
Larva (about half-grown ).—General tint, a dark flesh-colour 
with brown head, yellow prothoracic segment edged in front with 
black, with a few black specks behind ; canary-yellow mesothorax 
and flesh-coloured metathorax. Following eight segments are 
flesh-coloured, lighter at junction of segments. Last segment 
is canary-yellow, becoming orange-yellow at extremity. The 
head is dark chestnut-brown anteriorly, shining, chitinous, 
ovate and large; mouth parts black, antennz short, 3-jointed, 
yellow-brown. Posteriorly the head shades off into pale- 
brown and yellow. It is followed by a large prothoracic shield 
which is hard and chitinous and shining, slightly convex. The 
chitin terminates at the sides, the under-surface of prothorax 
being canary-yellow in colour and soft. The large chitinous 
shield is ovate, anterior margin straight, posterior ovate- 
elliptical. At the posterior edge of the thoracic plate is an 
elliptical circle of small raised spikes or spade-like protru- 
berances, doubtless used to shovel out of the way wood refuse 
and perhaps for scraping purposes. They are set backwards 
and are club-shaped. Behind these are a number of minute 
black spots placed in a crescent-shaped manner on the meso- 
thorax, the angles pointing forwards. The mesothorax is much 
narrower and smaller and has a_ soft skia. The following 
segments are equal in size, about a third less in diameter than 

* The description and life-history here given are abridged from a 
paper read by the Author before the Asiatic Society of Bengal and pubs 
lished in the Journal, Vol LX XIII; Pt. 11, No.2, pa25, 1904. 
