PLATE XVL 



i. Nepa apiculata Uhler. 



2. Arctocorixa interrupta Say. 



3. Pelocoris femoratus Palisot de Beauvois. 



4. Lethocerus americanus Leidy. 



5. Not one eta variabilis Fieber. 



6. Belostoma flumineum Say. 



7. Notonecta irrorata Uhler. 



8. Notonecta insulata Kirby. 



9. Gerris conformis Uhler. 



10. Gerris rufoscutellatus Latreille. 



1 1 . Gerris marginatus Say. 



12. Gerris remigis Say. 



13. Pseudoxenetus scutellatus Uhler. 



14. Lopidea robiniae Uhler. 



15. Lygus pratensis Linnaeus var. oblineatus Say, — tarnished 



plant bug. 



16. Lygidea mendax Reuter. 



17. Coccobaphes sanguinareus Uhler. 



18. Poecilocapsus lineatus Fabricius, — four-lined leaf bug. 



19. Horcias dislocatus Say. 



20. Stenotus binotatus Fabricius. 



21. Adelphocoris rapidus Say. 



22. Stenodema trispinosum Reuter. 



23. Miris dolabratus Linnaeus. 



24. Phlegyas abbreviatus Uhler. 



25. Nysius ericae Schilling. 



26. Eremocoris ferns Say. 



27. Oedancala dorsalis Say. 



28. Gnemodus mavortius Say. 



29. Myodocha serripes Olivier. 



30. Lygaeus kalmii Stal. 



31. EmbletJiis vicarius Horvath. 



32. Cimex lectularius Linnaeus. 



33. Nabis ferns Linnaeus. 



34. Phymata erosa Linnaeus. 



35. Sine a diadema Fabricius. 



36. Reduvius personatus Linnaeus. 



37. Melanolestes abdominalis Herrich-Schaeffer. 



38. Zelus exsanguis Stal. 



39. Pselliopus ductus Fabricius. 



40. Fitchia apt era Stal. 



41. Acholla multispinosa DeGeer. 



All natural size. Photographs by B. H. Walden. 



