PLATE VIII. 



Eggs of Notcnecta ir)-o)-ata inserted in the stem of money- 

 Egg of Notonecta undulata on edge of cattail leaf. 

 Eggs of Notonecta insulata on Cham. 



Eggs of two species of Notonecta N iiisiilata above, N. 

 variabilis below. 



Photo. 5. Corixid eggs on a submerged twig. They are often much 

 more abundant than this. The twig here photographed was a part of 

 a six-foot branch covered throughout. The twig is a fair sample. 



Photo. 6. Egg of Corixid enlarged. 



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