284 The University Science Bulletin. 



PLATE XXX. 



1. Scaphoideiis scalaris Van Duzee. 



2. Scaphoideus immistus (Say). 



3. Platymetopius acutus (SajO- 



4. Plalymetopius cinereus Osborn and Ball. 



5. Platymetopius frontalis Van Duzee. 



6. Deltocephalus reflcxus Osborn and Ball. 



7. Deltocephalus weedi Van Duzee. 



8. Deltocephalus inimicibs (Say). 



9. Deltocephalus flavicosta Stal. 



10. Deltocephalus debilis Uhler. 



11. Deltocephahis parvulus Gillette. 



12. Deltocephalus collinus Boheman. 



