8 
Indian Forest Records. 
[Vol. VII. 
The First Instar. 
Length T6 mm^Hg" when newly hatched, to 4 mm.= 3 y. 
Colour stramineus to pale brown. Head dark brown, prothoracic 
plate and tubercular shields dark brown. Appearance more hairy than 
older larvae. 
Arrangement of Setae . Differs from the arrangement in the mature, 
4th stage larva only with regard to minor tuberclets. Prothorax with 
He., sometimes absent; tuberclets posterior to the pronotal plate, and 
on subsegment 4, absent. 
First abdominal segment with a tuberclet antro lateral to T I, present 
or absent; supraspiracular tuberclet below T III absent. 
The Second Instar. 
Length 4 mm.—8 mm.= 3 - 2 " —~g". 
Colour pale brown to brown. 
Arrangement of Setae and tuberclets similar to the first instar. 
The Third Instar. 
Length 8 mm.—16 mm.= T y — 
Colour pale brown to reddish brown. 
Arrangement of Setae as in fourth instar. 
The Fourth Instar. 
Length 19-1 mm.—28-6 mm^f" — 
Colour reddish brown to blue. Head dark brown, sometimes with 
chestnut tinge ; pronotal plate and tubercular shields very dark brown 
or black ; shields on the 9th and 10th abdominal segments yellowish 
brown. 
Form [ See Plate I, figs. 1,2] subfusiform, shining, without second¬ 
ary hair. Legs normal, dark-brown, pubescent. Prolegs with crotchets 
40-46, triordinal [see Plate II, fig. 5] arranged in an oval ; anal proleg 
crotchets 24-30 triordinal, semioval [see Plate II, fig. 2] ; the crotchets 
of the 3rd series are very minute, equal in number to and alternate 
with the long and short crotchets-; Spiracles orange or light brown, 
subcircular, margins slightly elevated. 
Head (the arrangement of setae has not been homologised, but see 
Text fig. I). Ocelli 6, I, II, V and VI forming a rectangle, III and IV 
on the line II, V. Antennae (fig. 1) 4 jointed, 2nd longer than the 
remaining joints united, 4th very minute ; two long acute papillae, one 
short hair and one very long bristle on distal edge of 2nd joint ; one 
long pointed papilla and one long seta on 3rd joint; 4th joint 
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