30) BOARMIA ROBORARIA. 
the shape were meant to be a pentagon or hexagon ; at 
the ends the meshes are pentagonal or hexagonal, 
with the knots in their proper places; the colour of 
the eggs when received was dull greenish, one end 
becoming deep pink, the little knobs being white; at 
last the whole egg became dark brownish. 
The newly hatched larva is without humps, in 
colour pale green, with broad dark-brown lateral stripe, 
and head pale reddish-brown. ‘The first moult takes 
place in about a week, and the young larva comes out 
with indications of a hump on the sixth segment ; the 
colour pale ochreous on the back, lateral stripe pale 
brown, spiracular stripe pale ochreous, belly darker. 
After this the larva gets darker in colour, and 
attains a length of about three quarters of an inch 
before hibernation; the head is now notched, and 
large for the size of the body, and the ventral and 
anal pairs of legs are also large; the sixth segment is 
puffed, and bears two transverse’ humps on the back; 
the seventh with a pair of ventral warts; the twelfth 
with a transverse dorsal ridge bearing a pair of warts. 
The colour is dull purplish on the back, the belly 
paler and more brownish, the folds, humps, and 
ventral and anal legs all dusky grey; the head 
ochreous, freckled with brownish; at the folds a 
shght dorsal pattern, viz. a blackish spot with an 
ochreous spot on either side. , 
After hibernation it moults once, and then feeds up. 
The full-grown larva is about an inch and three- 
quarters in length; from above it appears of about 
uniform bulk throughout, except at the sixth segment, 
but sideways it appears stoutest at the ninth and 
tenth segments; the head is narrower than the 
second segment, flattened in front, notched on the 
crown, the lobes rising in conical prominences; the 
sixth sewment very much swollen on the back and 
sides, and bearing a pair of puckered subdorsal humps ; 
the swelling begins just below the spiracle, which is 
thus lifted considerably above the level of the spiracles 
