LUCY WRIGHT SMITH 
487 
EXPLANATION OF PLATES 
Figs. 1-8, 10, 12-15, 20-26, 28-32, 34-36, 39, 41-44, 47-49, 51-57 drawn on 
the same scale to show relative size. 
Figs. 27, 33 and 46 drawn on the same scale to show relative size. 
Figs. 16-19, 37 and 38 drawn on the same scale to show relative size. 
Figs. 11, 40, 45, 50 and text figures B, D and E drawn on the same scale to 
show relative size. 
The same scale of magnification was not kept for the drawings of the wings 
(figs. 9, 58-65). Consequently the actual measurement is given in the explana- 
tion of each wing figure. 
Plate XXIX 
Fig. 1. — Pteronarcys dorsala Say. End of abdomen of adult cf in left lateral 
view. 
Fig. 2. — Pteronarcys dorsata Say. End of abdomen of adult 9 in ventral 
view. 
Fig. 3. — Pteronarcys nobilis Hagen. End of abdomen of adult cf in left 
lateral view. 
Fig. 4. — Pteronarcys nobilis Hagen. End of abdomen of adult 9 in ventral 
view. 
Fig. 5. — Pteronarcys californica Newport. End of abdomen of adult cT in 
left lateral view. 
Fig. 6. — Pteronarcys californica Newport. End of abdomen of adult 9 in 
ventral view. 
Fig. 7. — Pteronarcys princeps Banks. End of abdomen of adult c? in left 
lateral view. 
Fig. 8. — Pteronarcys princeps Banks. End of abdomen of adult 9 in ven- 
tral view. 
Plate XXX 
Fig. 9. — Pteronarcys dorsata Say. 9 adult wings. Length of fore-wing, 
48 mm. 
Fig. 10. — Pteronarcys biloba Newman. End of abdomen of adult 9 in left 
lateral view. 
Fig. 11. — Pteronarcys proteus Newman. Entire supra-anal plate of adult c? 
in left lateral view. 
Fig. 12. — Pteronarcys proteus Newman. End of abdomen of adult cf in left 
lateral view. 
Fig. 13. — Pteronarcys proteus Newman. End of abdomen of adult 9 in ven- 
tral view. 
Fig. 14. — Pteronarcys biloba Newman. End of abdomen of adult cf in left 
lateral view. 
Fig. 15. — Pteronarcys comstocki new species. End of abdomen of adult 9 in 
ventral view. 
Fig. 16. — Pteronarcys proteus Newman. Outline of prothorax of nymph. 
Fig. 17. — Pteronarcys dorsata Say. Outline of prothorax of nymph. 
Fig. 18. — Pteronarcys biloba Newman. Outline of prothorax of nymph. 
Fig. 19. — Pteronarcys californica Newport. Outline of prothorax of nymph. 
TRANS. AM. ENT. SOC., XLIII. 
