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 v 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 

 frustrana(hus-tra. / na). — Thisspecies 

 infests the new growth of several 

 species of pine, spinning a delicate 

 web around the terminal bud, and FiG.29o.—Ketima/rustrana,\axv&, 



pupa, adult, and work, (trom 



mining both the twig and the bases the 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 CONCHYLID^; (Con-chyl'i-dae). 

 The Conchy lids (Cori ' 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- 



