EXPLANATION OF PLATE XIX. 



All the drawings were made by J. Henry Blake. 



Fig. 1. (12069) (\^) Fulgora obticescens. 



2. (262) C^**) Cercopis siifibcata. A portion 



showing the surface structure. 



3. (262) (f) Cercopis siiftoeata. 



4. (14229) (f) Gypona cincrcia. 

 r>. (2658) (f) Agallia abstructa. 



6. (10479) (j) Docinius psylloides. 



7. (307) (5) Agallia lewisii. 



8. (12088) (?) Nyctophylax vigil. 



9. (7628) (f) Tetligonia priscotincta. 



10. (4379) (f ) Aphrophora sp. 



11. (11771) (f ) Nyctophylax uhleri. 



12. (1.789) (I) Florissant ia elegans. 



13. (12785) (^,2) Elidiptera regularis. 



14. (1.705) (I) Cixius? proavus. 

 704 



Fig. 15. (11307) (f ) Aoocephalus callosus. 



16. (5188) (-|^) Jassopsis evidens. 



17. (9299) (',') Docinius psylloides. 



18. (10158) {'{) Agallia flaccida. 



19. (10672) (^) Thisspecinien wasacciil^ ntally 



overlooked in working uj) the fauna. It 

 is evidently the anterior half of one of 

 the Ceroopida and apparently a species 

 of Locrites, but does not agree willi I he 

 other species known. 



20. (3412) (J,-) Thaninotettix fundi. 



21. (1.805) (f) Agallia lewisii. 



22. (66.55) (\^) Clastoptera comstocki. 



23. (4552) (\^ ) Thlibomenus parvus. 



