No. 34-] HEMIPTERA OF CONNECTICUT: CERCOPIDAE. 231 



ularly, the apex varying from rounding to acutely angulate, clava 

 apex broadly rounded, corium hyaline with a broad terminal mem- 

 brane, surface clothed sparsely with a fine short pubescence, 

 usually an oval callous dot on margin before apex ; posterior tibiae 

 with a single terminal row of spines. 



The genitalia of the species in this genus possess so many points 

 of similarity that a single description inclusive of their general 

 characteristics should prove sufficient in connection with the illus- 

 trations, Figure 20 (72, 73, 76, y^j, 80, 81), which cover in detail 

 any minute specific differences. Female py gofers short and con- 

 vex, length about equal to greatest width, outer margin rather 

 broadly rounded at base, abruptly indented before apex, exceeded 

 but slightly by the ovipositor, which is carried perpendicular to the^ 

 plane of the body. Male, last ventral segment very short and 

 convex, outer margins expanded, inner margins attingent to before 

 apex, where they diverge slightly to form rounded lateral angles ; 

 males usually smaller and more sombre colored than the females. 



Key to Species* 



1. Hemelytra broadly convex, lateral margins broadly expanded, a 



distinct callous spot on margin before roundingly angulate apex; 



color and size variable 2 



Hemelytra narrowly convex, lateral margins scarcely expanded, 

 apex acutely angulate, callous spot on margin before apex indis- 

 tinct or wanting ; color uniform straw-yellow varying to pale 

 rufous ; size medium to large, length exceeding 4 mm osborni 



2. Front strongly inflated, disc sharply, rounded convex, rising 



abruptly from face at sides 3 



Front moderately inflated, disc broadly fiattened-convex, rising 

 gradually from face at sides 4 



3. Front more strongly inflated, entirely black or yellow with trans- 



verse interrupted black bands above, dark below ; pronotum 

 yellow, marked with five transverse black bands, or unicolorous 



black delicata 



Front less strongly inflated, upper two-thirds black, the margin 

 next to vertex narrowly yellow, lower third, lorae, and clypeus 

 yellow ; pronotum black varying to yellow proteus 



4. Size small, not exceeding 3.5 mm. ; color uniform above, black 



varying to glaucus ; hemelytra strongly impunctured, sparsely 



pubescent xanthocephala 



Size large, 4mm. or over; color above varying brown, marked 

 with light testaceous and dusky white; hemelytra minutely im- 

 punctured, thickly, finely pubescent obtusa 



C. osborni Gillette and Baker. 



CJastoptera osborni Gillette and Baker. List Hem. Colo., 71, 1895. 

 Clastoptera obtusa Say. Subsp. iii. osborni Ball. Proc, la. Acad. Sci., 

 vol. iii, 190, 1895. 



Straw-yellow varying to pale rufous, pronotum and clavus 

 tinged with pale olive-green; hemelytra narrowly convex, lateral 

 margins scarcely expanded, apex acutely angulate ; size medium 

 to large. Length 4.5-5 mm. ; width 2-2.5 "^rn- 



* Modeled somewhat after Ball. 



