ACIDALIA MARGINEPUNCTATA. 111 
of it, but which appears only at each end of a segment. 
The ventral surface is entirely black. 
These larvee all died during the end of winter. 
(William Buckler, 1873 ; Note Book I, 205.) 
On the 30th of September, 1873, Mr. F. Bisshopp, 
then on the point of leaving Ipswich, kindly sent me 
afew larve of Acidalia straminata feeding on knot- 
erass sparingly, and when after a time this food failed, 
they nibbled a little at tormentil and heather, but soon 
began to hybernate, and about the end of November 
one or two died, which induced me to make them over 
to the Rev. J. Hellins, knowing that if they could be 
kept alive during the winter and spring he would be 
successful ; and 1 my belief was verified, for on the oth 
of June, 1874, I received from him a eran in its last 
dress, and on the 14th another grown to the same size. 
These were about seven-eighths of an inch in length, 
slender in proportion, tapering gradually from the end 
of the ninth seement to the head, which is the smallest, 
and from the ninth to the anal extremity. On the 
back it is a trifle flattened, the spiracular inflated pro- 
jecting ridge helping this appearance; rounded on the 
ventral surface similar to that of the back, and rugose 
above and below; segmental divisions well defined ; 
the head rounded at the sides and notched on the 
crown ; some very minute stumpy bristles rather nume- 
rous proceed from the head and second segment, as 
well as from their usual situations on the other parts 
of the body and ventral and anal legs. 
The colour of this larva is a pale ashy grey or 
pinkish grey, becoming on. the eighth and ninth 
segments almost white, no a fine Thar like dorsal line 
is whitest faintly edged with blackish or grey. This 
pale portion on each segment beyond the fourth is 
somewhat of a pear or pegtop shape, the broad part 
behind and surrounded with grey, its apex defined 
by a blackish inverted VY mark followed by the two 
anterior black dots; the posterior dots also black, 
and a short open V mark at the end of the segment; 
