26 Indian Forest Records. [Vol. Vllt. 
prothorax chitinised above and dorsolaterally, light brown ; abdominal 
segments 1 -9 and sometimes also thoracic segments I and II with anterior 
transverse pink bands ; the bands are usually about half the width of the 
segment, but may be broader ; the colour varies from crimson lake to 
pale pink, and may disappear entirely from the median segments ; 
white individuals occur in which only the thorax and 9th segment are 
coloured. 
Head. [Plate i, figs. 1 & 2]. The arrangement of the setae 
has not been specially studied ; the figures show those present and their 
relative positions. Ocelli I, II, III in a broad based triangle, IV caudad 
of the line II, III, VI, and V caudo-ventrad of VI. The mouth parts 
have not been separately studied. 
Thorax. Prothoracic Shield. [Plate i, figs. 3 & 4] longer than 
broad, anterior margin transverse, sides parallel, with two more or less 
separate deltoid extensions laterally, posterior margin broadly rounded ; 
anteriorly strongly declivous, smooth, shining, posteriorly slightly 
depressed and strongly asperate. The asperities of the posterior area 
consist of (a) an arcuate line of about 25 sharp teeth raised at 45° and 
directed backwards, with a row of 4-5 of the largest teeth in advance 
of the rest, (b) an elliptical area of 4 or 5 ill-defined rows of slightly smaller 
teeth and ( c) a posterior zone of numerous minute teeth in w r hich the 
linear arrangement is lost. The large teeth are interspersed to some 
extent with small, and all become minute and effaced at the margins 
of the shield. 
Spiracles, [Plate i, figs. 5—7] large, oval, sub-equal except thoracic 
and 1st abdominal, which are slightly larger, margins raised, golden- 
brown with dark depressed centres ; spiracles on segment 8 one-third 
larger, subdorsal; thoracic segments II and III with a dark spot in the 
triangle formed by setae theta, kappa and eta ; these spots represent, 
presumably, the scars of eliminated thoracic spiracles. 
Prothoracic legs, obconical, 3 terminal joints chitinised, with a single 
claw. 
Prolegs on 3, 4, 5, 6 and 10 ; ventral crotchets [Plate i, figs. 8] in 
a complete uniserial ring, pearshaped with the apex mesad, biordinal, 
the shorter crotchets on an average more than half the length of the 
longer ; anal crotchets in a transverse band. 
Arrangement of the Body Setae. 
[Plate i, fig. 10.] 
PROTHORAX.—(fig. 10, T. I) alpha, gamma and eta equidistant, 
in one line on anterior margin of thoracic shield ; alpha considerably 
[ 254 ] 
