266 TINEIDS. 
minal rings being attenuated; color pale-green with a bright 
dark-green vascular line; head greenish-brown and small. 
The larva was not taken from the mine for description. It 
leaves the mine very early in October to spin an oval, very 
dark reddish-brown cocoon and appears as an imago during 
the latter part of May or early in June. There is therefore, 
in all probability, asummer brood, which may be found in 
July and August, if the conjecture is correct.” 
THE CASE-BEARING BLACKBERRY LEAF-MINER. 
(Nepticula villosella Clem.). 
The larvze of this species occur in the leaves of the black- 
berry during the latter part of June to the middle of July. 
The mine is very narrow, only about wide enough to accom- 
modate the miner, tortuous, with acentral frass line. The 
larva is pale brownish, and leaves the mine during the lat- 
ter part of July. It differs from the above insect both in the 
shape of the mine and in the color of the larva. 
As is usual when a leaf-mining larva has attained a cer- 
tain age it cuts out the two skins of the mined place and 
constructs of it a portable case, which it never abandons 
subsequently, except to construct a new one when its in- 
crease in growth demands such a change. In feeding the 
larva attaches its case to a leaf, and bores into it between 
its skins, eating out a transparent patch, extending its body 
from the case for this purpose, but quickly retreats into it 
again if alarmed. 
