10 PHIGALIA PILOSARIA. 
knobby and warty; they have eight pairs of dorsal 
and eight pairs of subdorsal warts on the fifth to the 
twelfth segments—both inclusive. They differ as 
follows: 
In N. hispidaria the warts, although not uniform 
in size throughout, yet do not vary so much; the 
dorsal warts on the twelfth segment being” bigger than 
any of the rest, and the biggest subdorsal warts being 
on the sixth segment. And then as to the colouring— 
there 1s a more uniform pattern and mottling of 
orange with grey or black. 
In Phigalia pilosarva both the dorsal and the sub- 
dorsal warts of the sixth and seventh seements much 
exceed in size any of the rest; and, together with 
some pale ochreous marks on the same segments, 
which begin on the sides and meet in the shape of a 
fA on the back, form a distinguishing feature easily to 
be caught. (John Hellins; E.M.M., January, 1867, 
JOEL. kS),)) 
NyYssta HISPIDARIA. 
Plate OX, fig. 2. 
On the 19th of May, 1870, I received from Mr. J. 
P. Barrett, of Peckham, a few larvae, which were then | 
rather more than half an inch in length, and were 
brown, with a double row of orange-coloured spots 
down the centre of the back. They grew very rapidly, 
being full-fed on June Ist, when I took the following 
description : 
Length about an inch and a half, of tolerable thick- 
ness in proportion to the length. Head narrower 
than the second segment, retractile, flattened, and 
notched on the crown. Body irregular, thick on the 
anterior and posterior segments, thinner in the middle ; 
segmental divisions conspicuous, the anterior part of 
each segment being narrower than the posterior; 
