28 
Psyche 
[March 
tere par sa partie anterieure et annelide par la reste du 
corps.” The larva is yellowish in colour especially towards 
the posterior half. The anterior four and last body segments 
are moderately pigmented. 
The integument is thin, polished and shining. The body 
of the larva is free from hairs except for six groups of sen- 
sory hairs situated in the three thoracic segments in direct 
relationship of the imaginal buds of the legs. Each group 
consists of four hairs of equal length. 
The body of the larva is composed of 12 body segments; 
the first four of which are smaller and quite distinct from 
the rest. They are rectangular in shape and the sides are 
produced into small sacs. The skin of the other body seg- 
ments is thrown into numerous transverse folds. Each fold 
is produced into a small sac at the sides. In preserved ma- 
terial, the last 8 body segments are difficult to make out on 
account of the transverse folds; thus in the closely related 
genus Ceroplatus, Reaumur thought the body segments were 
innumerable, while Husdon counted 19 body segments in the 
New Zealand “glow worn.” The last body segment (fig. 8) 
is provided with two conical papillae which are of variable 
size according to their state of turgescence. 
The head (Figs. 2, 3) is quadrate, dark brown and partly 
retractile in the first body segment. The frontal plate is 
egg-shaped with the pointed end situated on the posterior 
margin. The latter shows two deep lateral emarginations. 
The lateral epicranial plates curve towards the ventral sur- 
face of the head and meet anteriorly leaving a bell-shaped 
area covered with transparent chitin (Fig. 3). Anteriorly, 
each plate sends two tongue-shaped pieces of chitin which 
articulate with the condyles of the mandible. 
The antenna (an. Fig. 2) is convex and resembles a watch 
glass. It is supported by a strongly chitinised base and an 
annular band of chitin outside which four minute papillae 
are present. 
The eyes (E. Fig. 3) are small vestigial structures sit- 
uated postero-lateral to the antennae. Each consists of a 
transparent membrane overlying a layer of pigmented cells. 
The labrum (Fig. 4) is supported by a well developed 
chitinised frame which adjoins the frontal plate. The lat- 
