76 



THE REPORT OF THE 



No. 19 



.1 



Some insects, however, do hibernate as larv.e, but these are all protected in the ground, 

 and in the mud at the bottom of ponds, or in specially constructed cocoons, or other covering. 

 The following insects hibernate as larvae : 



Codling Worm (Carpocapsa pomonella). 



Bud- Moth Caterpillar (Tmetocera ocellana). 



Most Cut-Worms (Noctuidce), Fig 34. 



Peach-Tree Borer (Sannina exitiosa), 



Blister-Beetles (Epicauta Peniisylvarjca E. vittuta, E. cinerea). 



Joint- Worms (Isosoma tritici). 



Hessian Fly {Cecidoinyid destruztor). as "Flax-seed." 



Ichneumon-Fly (IchneumonidcB). 



Ant-Lions (Hemerohiidcr). 



Wire- Worms (Elateridoe), Fig. 35. 



White Grubs (Lachnosterna fusca)., Fig. 3(5. 



San Jos^ Scale {Aspidiotus perniciosus). 



Crambus Moth (Crambidce). 



The Pupce. True pupae only occur among insects which undergo complete metamorphosis. 

 A.S the pupal period is the resting, inactive stage, when no food is taken, and when the pupa 



Fig. 38. Telea polyphemus cocoon. 



Fig. 41. Chrysalis 

 of Milkweed But- 

 terfly (Archippus). 



Fig. 39. Telea polyphemus chrys- 

 alis from interior of cocoon. 



Fig. 37. Attacus promethea 

 cocoon. 



Fig. 42. Chrysalis of Papilio 

 Cresphontes, showing mode 

 of suspension. 



itself is protected by a thick, chitinous, impervious coat, by a thickly-clad silk cocoon, or by an 

 earthen cell in the ground, the majority of insects usually pass the winter in this stage. In this 

 stage, the circulation and respiration is much lessened, while the supply of fat stored up by the 

 larvse is sufl5cient for the needs of the pupa. 



