88 THE CANADIAN ENTOMOLOGIST 



Explanations of Plate V. 



Fig. 1. PcUoperla arcuata Needham — End of abdomen of C 

 adult in \entral view. 



Fig. 2. Pelloperia arcuata Needham. Wings. 



Fig. 3. PeUopcrla maria, n. sp. — End of abdomen of C in 

 ventral view. 



Fig. 4. Peltoperla anua, n. sp. — End of abdomen of 9 in 

 ventral view. 



Fig. 5. Peltoperla anna, n. sp.^ — End of abdomen of cf in left 

 lateral \'\c\\. 



. Fig. 6. Pelotperla cornelia, n. sp. — End of abdomen of I in 

 \ entral view. 



Fig. 7. Peltoperla dorothea, n. sp. — End of abdomen of v in 

 \entral view% 



Fig. 8. Peltoperla dorothea, n. sp. — End of abdomen of d^ in 

 left lateral view. 



Fig. 9. Peltoperla ada, n. sp. — End of abdomen of 9 in ventral 

 view. 



Fig. 10. Peltoperla brei'is Banks. — End of abdomen of 9 in ven- 

 tral view. 



Fig. 11a. Peltoperla brevis Banks. — End of abdomen of cT in 

 left lateral view. 



Fig. lib. Peltoperla brevis Banks. — Ninth sternite of cT show- 

 ing median callosity. 



Fig. 12. Peltoperla brevis Banks. — Outline of prothorax. 



Fig. 13. Peltoperla arcuata Needham. — Outline of prothorax. 



Fig. 14a. Peltoperla tliyra — End of abdomen of male in left 

 lateral view. 



Fig. 14b. Peltoperla thyra. — Extremity of supra-anal j)late, 

 view'ed from behind. 



Fig. 15. Peltoperla thyra — Outline of prothorax. 



Fig. 16 Peltoperla ada. — Outline of prothorax. 



Fig. 17. Peltoperla dorothea. — Outline of prothorax. 



Fig. 18. Peltoperla maria — Outline of prothorax. 



Fig. 19. Peltoperla anna. — Outline of prothorax. 



Fig. 20. Peltoperla cora. — P!nd of abdomen of female in ^•entral 

 \iew. 



Fig. 21. Peltoperla cora — Outline of prothorax. 



Fig. 22. Peltoperla cornelia. — Outline of prothorax. 



