1883.] Entomology: 1173 
are two well defined black dots between the discal and the base. 
female. He had recently called attention in the NATURALIST to 
the correlation between the produced clypeus and the horny ex- 
Sertile Ovipositor, and the fact that they indicated endophytous 
larval habit. The various methods of imaginal exit in stem- 
boring Lepidoptera, and the structural modifications that resulted 
Were most interesting to the philosophical entomologist. In some 
Species, as in:the Nonagria here mentioned, the clypeal point on 
€ pupa seemed merely a consequence of the necessary point in 
the imago, the pupa remaining in its burrow, and the imago bor- 
u 
à In some borers the larva prepared a iie ~x 
waich the imago easily pushed open, the pupa remaining ae ea 
Within its prison, while in others, closely related, the pupa 
