Peronea aspersana, Hub. — The larva of this species cannot be 
looted upon otherwise than as a nuisance — here, at any rate. On the 
c oas ^ ^ swarms on the sand-hills, feeding impartially upon Sosa spino- 
sissima and Poterium sanguisorba in the quarries, also on the Poterium, 
and, for purposes of deception, no doubt, on Potentilla reptans , the 
leaflets of which it draws together and gnaws. From the mountains 
1 . bi ought home minute larvae, on the common Torment ill a, and 
cherished them to full growth, only to be disappointed by the appear- 
ance of aspersana , and a larva on Potentilla anserina , with the curious 
habit of gnawing into the mid-rib, and causing the upper leaflets to 
wither, was reared with equal curiosity, and a similar result. It also 
forms one of the company of species the larva of which delight to feed 
in the top shoots of Spiraea ulmaria , when trying to unfold itself, in 
the Norfolk marshes. The young larva is slender, cylindrical, active, 
yellowish or pale yellowish-green, with jet-black head, dorsal plate 
jet-black or blackish-brown, anal plate grey or yellowish with a dark 
spot. A\ hen older, still slender and active, yellowish-green, or bluish- 
green with the under-parts yellowish, or dark green, with the head 
and plates light brown, the latter sometimes black-margined, and, in 
some of the full-grown larva*, the plates become shining green. 
Drawing together the leaflets of the above-mentioned plants and 
gnawing their surfaces ; leaving the shoot when full-grown to spin up 
among rubbish. Feeding in May and to the middle of June ; emerg- 
ing in July. 
Peronea Shepherd ana, Steph.— For the larva of this very local 
species I am indebted to the kindness of my friend, Mr. W. IT. B. 
Fletcher, who sent a good supply from Wicken Fen last June. I am 
thus enabled to describe the variations of this larva, which varieties 
I certainly expected wnuld prove to belong to more than one species. 
The larva is not active, cylindrical, but slightly attenuated at each end. 
"When young, whitish, tinged with grey on the back, and with a 
yellowish internal dorsal blotch about the ninth segment. Spots and 
hairs hardly discernible, head light brown with dark brown eyes and 
jaws, dorsal plate black or dark brown, anal plate faintly brownish, 
anterior legs black. When full-grown, pea-green, tinged with darker 
on the back, internal dorsal line visible, pulsating regularly, spots in- 
visible, hairs distinct, head yellowish-brown, jaw r s brighter browui 
plates pea-green, the dorsal plate having the posterior margin, and the 
anal, the anterior margin, dotted with blackish. Feet greenish. Or 
dull whitish, or very pale yellowish, with the entire dorsal region dull 
