LEPIDOPTERA. 
243 
the habits of the boring species. The larva infests the 
small branches of pitch-pine. It is a yellowish-brown 
caterpillar, which makes a burrow along the centre of 
the branch. Its presence may be detected by the resin 
that flows out of the wound in the twig and hardens 
into a lump. Two of these lumps are shown in the 
figure, one of them splits lengthwise, 
and the other with a pupa-skin pro¬ 
jecting from it. The larva, pupa, 
and adult are also figured. The 
moth is represented natural size; 
the darker shades are dark rust- 
color, and the lighter, light-gray. 
The insect winters as a larva; the 
adult emerges in May and June. 
The Frustrating Retinia, Retinia 
frustra)ia(ivws-\.ra! —This species 
infests the new growth of several 
species of pine, spinning a delicate 
web around the terminal bud, and Fig. 290.— Retiniafrustrana, larva, 
. . pupa, adult, and work. (From 
mining both the twig and the bases thc Author’s Report for 1879.) 
of the leaves. The larva, pupa, and adult are represented 
somewhat enlarged in the figure. An infested twig is also 
shown (Fig. 290). 
Family C0NCHYLID.££ (Con-chyl'i-dae). 
The Conchy lids (Con' chy-lids'). 
This is the smallest of the three families of Tortricids, less 
than fifty species occurring in our fauna. The members of 
it can be recognized by the characters given in the table 
above. Comparatively little is known about the habits of 
our species. 
The Juniper Web-worm, Conchylis rutilana (Con'chy-lis 
ru-ti-la'na), is an imported species which has attracted atten- 
