BUFFALO SOCIETY OF NATURAL SCIENCES 63 



9. Grey or brownish species, more or less distinctly banded or 



dotted with darker brown, sometimes almost entirely 

 fuscous or blackish, 10. 



-. Green or greenish species varying to clear yellow, some- 

 times banded with brown, 14. 



10. Crest much higher before than behind but not forming a 



regular step as in Hcliria, 11. 



- Crest truncated above, the angles nearly or quite right 



angles, 13. 



11. Anterior toliole greatly developed and in the female lean- 



ing over the head, apex rounded, superior margin arcua- 

 ted, the hind angle scarcely forming a break in the 

 contour, 14, cucullata V. D. 



Anterior foliole not leaning over the head, 12. 



12. Crest short, rising abruptly from the middle of the dorsum, 



nearly square, sloping superiorly, with the hind angle 

 acute and prominent; inhabits Arizona etc. 



13, sinuata Fowl. 



-. Crest broader and higher, regularly rounding above, with 

 the hind angle abrupt and acute; pronotum distinctly 

 banded, 12, concava Fh. 



13 A brown vitta down the anterior margin of the crest to the 

 humeral angle and a broader one on the posterior mar- 

 gin, the latter strongly angled at the base of the crest; 

 sometimes the whole surface brown dotted with paler, 



11, coryli Fh. 

 A brown vitta on each side of the pronotum which becomes 

 horizontal above and covers the entire crest, below this 

 is a pale line which crosses the anterior base of the crest; 

 superior edge of the crest with a small pale spot ; in the 

 darker specimens the form of this dark vitta can be 

 detected, 10, ampelopsidis Harr. 



14. Color yellow, more or less distinctly banded with brown, 



i5- 



-. Color green or greenish, immaculate, 16. 



15. Humeral angles greatly produced, more than twice the 



length of the eye; margin of the pronotum posteriorly 

 and the elytra beneath with a fuscous spot, 



18, metadata V. D. 



