THE CANADIAN ENTOMOLOGIST 



37 



Fig. 6. — Dorsal view of 



head and pronotum of 



Columbiana tloydi. 



Fig. 6a. — Face of same. 



Fig. 7.—C. lloydi, full 

 view of pygofer. 



F g. 7a. — Lateral view of same. 



Fig. 8. — Pissonolus 



megalcslylus, full view 



of pygofer. 



Fig. 8a. — Lateral 

 of same. 



9. — Megamelus timehri, 

 full view of pygofer. 



Fig. 10. — Chloriona 



fuscipennis. full view 



of pygofer. 



Fig. IL — Delphacodes 



guianensis, full view 



of pygofer. 



Fig. 12. — Delt)hacodes suhfusca, 

 full view of pygofer. 



