EDMUND H. GIBSON 75 



11. Species small, less than 3. 5 mm. long 12. 



Species large, more than 3. 5 mm. long 14. 



12. Crest of hood rounding, borealis Parshley, new species (31) 



Crest of hood angulate 13. 



13. Two or tliree apical areoles of elytra entirely hyaline. 



bellula new species (34) 

 None of apical areoles entirely hyaline brunnea new species (33) 



14. Three large areoles in apical band of elj'tra entirely hyaline 15. 



Three smaller areoles in apical band of elytra not entirely hyaline, partly 



opaque 16 . 



15. Crest of hood acute or angulate, top from crest forward straight. 



spinulosa new species (5) 

 Crest of hood rounding and top from crest forward convex, not straight. 



cyrta Parshley, new species (18) 



16. Areoles of paranoia opaque, creamy; brown markings light. 



elegans Drake, new species (25) 

 Areoles of paranota hyaline; bro^\ai markings dark 17. 



17. Species large, 4 mm. long 18. 



Species .smaller, less than 4 mm. long 19. 



18. Apical band of elytra very wide, one-third the length of elytra. 



beiulae Drake, new species (19) 



Apical band of elytra narrow, not more than one fourth the length of 



elytra padi Drake (22) 



19. Paranoial spot large, posterior margin of apical band of elytra straight. 



cydoniae Fitch (21) 

 Paranoial spot small, posterior margin of apical band of elytra rounding. 



heidemanni Drake, new species (20) 



20. Reticulations of hood more than twice the size of those of paranota. 



juglandis Fitch (7) 

 Reticulations of hood not more than twice the size of those of paranota . .21. 



21. Hood comparaliveh^ high, lateral carinae terminating near to base of hood. 



distincta Osborn and Drake (8) 



Hood com})aratively low, lateral carinae terminating far from base of hood. 



. pergandei Ileidemann (29) 



22. Reticulations of globose portion of hood greater than those of the para- 

 nota 23. 



Reticulations of globose portion of hood about the same size as those of 



paranota 48. 



23. Height of hood less than one-half of its own length 24. 



Height of hood one-half or more of its own length 29. 



24. Only color markings on membranous portions are on tumid elevations of 



elytra ciliata Say (52) 



More extensive color markings 25. 



25. A distinct brown band across apex of elj'tra 27. 



No distinct brown band across apex of elytra, only a trace of one 26. 



26. A distinct brown band across base of elytra arcuata Say (51) 



No distinct brown band across base of elytra . . confralerna new species (53) 



TRANS. AM. ENT. SOC, XLIV. 



