. Ontario Sessional Papers, 1902, . t globules. The eggs of some insects possess remarkable vitality,such as those of the Walking Stick, and Bittacus, which survive two or more years. Naturally, then, we might expect to find some insects in all the Orders hibernating in theegg state. The following common forms winter as eggs :— Plant-lice (Aphididae). Tree-Hoopers (Membtacidae). Leaf-Hoppers (Jassidae). Most Scale Insects (Coccidae). Leaf-bugs (Gapsidne). Grass-hoppers (Acrididai). Locusts (Looistidac). Crickets [Gryllidae). Walking-Stieks {Pluismidae). Gipsy Moths {Ocaerin ).

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. Ontario Sessional Papers, 1902, . t globules. The eggs of some insects possess remarkable vitality,such as those of the Walking Stick, and Bittacus, which survive two or more years. Naturally, then, we might expect to find some insects in all the Orders hibernating in theegg state. The following common forms winter as eggs :— Plant-lice (Aphididae). Tree-Hoopers (Membtacidae). Leaf-Hoppers (Jassidae). Most Scale Insects (Coccidae). Leaf-bugs (Gapsidne). Grass-hoppers (Acrididai). Locusts (Looistidac). Crickets [Gryllidae). Walking-Stieks {Pluismidae). Gipsy Moths {Ocaerin ). Fall Canker Worm (Palaeacrita pometaria). Tussock Moth (Orgyia leucostigma). Tent-Caterpillars {Clisxocmiipa Americanoi, and C. disstria)(fig. 33). Tin- Larvae. Insect larvae differ from the immature forms of other invertebrates in thepossession of the systems of organs and the same number of segments in the head, thoax, andabdomen. When ready to pupate the larvae are always larger than the adults. Fig. 33. Egg-clnster ofTent Fig. 36. Lachnosterna. 1. Pupa; 2. • WhiteGrub : It and 4. Beetle.

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