596 NEW YORK STATE MUSEUM 



PLATE 33 



Caddis fly cases and eggs 



Fig. 



1 Larval case of H a 1 e s u s sp. ? no. 3 



2 Larval case of H a 1 e s u s sp. ? no. 2 



3 Larval case of H a 1 e s n s sp. ? no. 1 



4 Egg ring of an imkuowu caddis fly. Plioto by C. Betteu from life 



PLATE 34 

 Caddis flies (Trichop tera) 



Fig. 



1 Leptocerus resiirgens Walker 



2 Triaenodes ignita Walker 



3 Hydropsyehe sealaris Hagen 



PLATE 35 



Diptera 



Fig. 



1 Strati omyia badius Walker ; drawing by Miss Anthony 

 2Tipiila abdominalis Say, plioto by H. N. Ho wland 



PLATE 36 



Larvae of Diptera 



Fig. 



1 Dorsal view of larva of Tipula abdominalis Say 



2 End of abdomen of same, more enlarged 



3 a Dorsal prolegs of one segment of larva of Sepedou fiiscipenuis 



Loew (developed for crawling beneath the surface film) 

 6 End of abdomen of larva of Sepedon fnscipennis Loew 



4 End of abdomen of larva of Tetanocera pictipes Loew 



