No. 34-] HEMIPTERA OF CONNECTICUT I CICADELLIDAE. 105 



7. Small, not exceeding 3.5 mm., elytra marked with dark brown, 



vertex longer than broad 8 



Broader, robust, length exceeding 4 mm., vertex as broad as long, 

 without many dark markings. (Fig. 4, 1.) configuratus 



8. A dark brown band across elytra and apical cells brown, female 



segment concavely rounded sayi 



Elytra paler without dark bands, female segment convexly produced 



misellus 



9. Size small, not exceeding 3.5 mm., elytra short, spots on vertex 



small, usually, four or none 10 



Size larger, 4 mm., a pair of large black spots on vertex, pronotum 

 and scutellum inimicus 



10. Some shade of gray or brown with elytra dark or with dark 



markings II 



Pale yellow to olive, a pair of triangular spots at apex formed by 

 areas on the face and a broken band between the eyes, black vinnulus 



11. Grayish or brownish with pale and dark areas 12 



Reddish brown, vertex and anterior portion of pronotum yellowish, 



apices of elytra whitish hyaline apicatus 



12. Long, 3 mm. or more, elytra usually decidedly longer than abdomen 13 

 Very short, compact, not exceeding 2.75 mm. in length, elytra short, 



usually not longer than abdomen compactus 



13. Vertex as long as or longer than width between eyes, rather 



strongly angled 14 



Vertex wider between eyes than length at middle, more obtusely 

 angled. (Fig. 11, 2.) obtectus 



14. Female segment concaved posteriorly, male plates broad, bluntly 



pointed. (Fig. 11, 3a.) weedi 



Slightly longer and more robust, female segment produced with 

 visible side plates, male plates long with acutely pointed tips . . 



interruptus 



15. Vertex usually bluntly angled or almost rounded anteriorly, width 



between eyes greater than length at middle 16 



Vertex as long as or longer at middle than width between eyes, 

 usually rather sharply angled. (Fig. 11, 4a.) 17 



16. Color greenish or yellowish with fuscous or black markings , 2S 



Color black or dark brown; spots at apex of vertex, and costal 



margin broadly yellow flavicosta 



17. Size small, less than 3 mm., yellowish green without definite mark- 



ings 18 



Larger, more than 3 mm. in length, usually 3.5 mm., or more 19 



18. Vertex distinctly longer than width between eyes, angularly pointed ; 



female segment with shallow, broad but abrupt excavation, male 



plates almost truncated melsheimerii 



Vertex less pointed, almost as wide between eyes as length at 

 middle, female segment narrowly incised at middle ; male plate 

 convexly rounded, tips bluntly pointed but not truncated minimus 



19. Vertex sharply angled, sides extending in a straight line from eye 



to apex, margin without definite markings. (Fig. 11, 4a.) 20 



Vertex broadly roundingly angled, sides of vertex convexly rounded 

 to apex, a heavy black line between eyes on margin, often form- 

 ing two black points on vertex at apex. (Fig. 11, 6a.) . . .pascuellus 



20. Slender, female segment not incised, male plates with apices more 



pointed 21 



More robust, female segment produced, rather deeply incised at 

 middle, male plates rather broad and blunt at tips debilis 



21. Female segment distinctly produced at middle 22 



Female segment sinuated, with three small lobes at middle; male 



plates tapered to narrow attenuated tips nominatus 



