1911] Hypera and Phytonomus in America 471 



EXPLANATION OF PLATES. 



PLATE XXIV. 



1. Maxilla P. comptus. 



2. Labial palpus, complus. 



3. Mandible complus. 



4. Mandible of P. posticus. 



Stem (forceps) of genitalia (dorsal view except ^5 and 11). 



5. P. complus (side view, New Jersey specimen). 



6. P. comptus. 



7. P. eximius (Nebraska specimen). 



8. P. guadricollis (Aweme specimen). 



9. P. melcs (Connecticut specimen). 



10. P. posticus. 



11. P. posticus (side view), f ^ < 



12. P. murinus (European specimen). 



13. P. rumicis (European specimen). 



14. Hypera punctata. 



15. Mandible, P. meles. 



16. Maxilla, P. meles. 



17. Antenna, P. comptus. 

 IS. Emarginate hair. 



19. Emarginate scale. 



20. Deeply emarginate scale. 



21. Deeply cleft scale. 



22. Cleft scale. 



Larval segments (dorsal outliu 



23. P. meles (redrawn from Laboulbene). 



24. 4th segment, II. punctatus. 



25. 4th segment, P. posticus. 



26. 4th segment, P. nigriroslris. 



27. 8th segment, P. posticus. 



28. 8th segment, P. nigriroslris. 



29. 1st thoracic, H. punctata. 



30. 1st thoracic, P. posticus. 



31. 1st thoracic, P. nigriroslris. 



32. 8th segment, H. punctata. 



PLATE XXV. 

 Hypera punctata Fab. 



1. adult dorsal. 



2. adult ventral. 

 (Enlarged lOx). 



