34 BOARMIA CONSORTARIA. 
much in the amount and position of the brown on 
them, that to describe any of them in detail would 
probably be misleading, so far as concerns the deter- 
mination of casually-captured larvee. 
Feeds on oak and birch, and in captivity also well 
on sallow. 
By August 23rd nearly all the larve had disap- 
peared below the surface of the ground, and the 
moths, a very fine series, emerged from May 16th to 
nearly the end of July following. (George T. Porritt, 
September 12th, 1895; E.M.M., October, 1895, XX XI, 
226.) ey 
TTEPHROSIA CONSONARIA. 
Plate CXITITI, fig. 1. 
On May loth, 1871, 1 received from Mr. H. W. 
Marsden, of Gloucester, a few eggs of this species ; 
they were oval, and in colour dull reddish-purple. In 
a fortnight, the young yellowish-green larvee emerged, 
and took readily to oak and birch. By June 23rd a 
length of about five-eighths of an inch had been 
attained, and the general colour was dark brown, 
with a broad yellow double medio-dorsal stripe; the 
head paler brown than the ground. —. 
On July 25th they were full-fed, and may be 
described as follows : ) 
Length nearly one and a half inches, and very 
slender in proportion; head a little wider than the 
second segment, globular, rather flattened on the face, 
and very slightly notched on the crown. Body nearly 
cylindrical, but slightly flattened on the dorsal, and 
still more so on the ventral surface. The segments 
overlap each other, and thus render the divisions 
conspicuous. ‘he usual dots are slightly raised, and 
on the twelfth segment appear as two shght humps; 
the skin has a wrinkled appearance. 
The ground colour varies in different specimens from 
yellowish-green to yellowish-brown ; the head is pale, 
