No. 34-] HEMIPTERA OF CONNECTICUT: CERCOPIDAE. 211 



States (not recorded for Maine). In New York this variety 

 grades into, and southward on the Atlantic slope gives way to, 

 the typical form biciucta, which form occurs "throughout the gulf 

 states and up the Mississippi valley as far as Central Iowa, where 

 it is extremely rare." (Ball.) 



Stafford, 24 Aug., IQ05 (W. E. B.) ; Manchester, 11 Aug., 1916; Hamden, 

 15 Aug., 1916 (M. P. Z.) ; New Haven, i Aug., 1920 (B. H. W.) ; Danbury, 

 29 Aug., 1920 (B. H. W.) ; Yalesville, 20 Aug., 1920 (M. P. Z.) ; Portland, 

 25 July, 1920 (B. H. W.). 



Subfamily Aphrophorinae. 



The members of this subfamily are smaller, more elongate, 

 rather somber colored forms ; five genera comprising twenty-one 

 species occurring within the Nearctic fauna. 



Key to Genera. 



1. Apex of clavus acute, corium without a terminal membrane ; form 



large, elongate 2 



Apex of clavus broadly rounded, corium with a broad terminal 

 membrane ; form small, globose Clastoptera, p. 230 



2. Form usually smaller; anterior margin of pronotum rounded; 



vertex and pronotum without a pronounced median carina ; 

 rostrum short and stout, two- jointed, reaching the middle coxae; 



ocelli nearly equidistant from eyes and each other 3 



Form usually larger, more elongate ; anterior margin of pronotum 

 angulate ; vertex and pronotum with a pronounced median carina ; 

 rostrum long, three- jointed, the last and longest segment exceed- 

 ing the hind coxae, ocelli nearer to each other tlian eyes 



Aphrophora, p. 211 



3. Anterior margin of vertex between eyes and front sulcate ; pubes 



cence of dorsal surface variable 4 



Anterior margin of vertex between eyes and front non-sulcate ; 



pubescence of dorsal surface dense obscuring venation 



Lepyronia, p. 220 



4. Elytra with about five apical cells; pubescence of dorsal surface 



sparse Philaenus, p. 224 



Elytra irregularly reticulated apically; pubescence of dorsal 

 surface dense Philaronia, p. 228 



Aphrophora Germar. 



Vertex, disc weakly convex or flattened, sloping, medially 

 carinate, anterior margin obtuse or rectangulate. apex rounding; 

 tylus broad, weakly carinate ; ocelli located close to posterior 

 margin of vertex, nearer each other than to eyes ; front, disc 

 convex, transversely rib-punctured, except on median line, inflated, 

 acutely angulate with vertex ; rostrum long, three- jointed, the 

 last and longest segment exceeding the hind coxae; pronotum 

 large, disc convex, sloping, medially carinate, anterior margin 

 broadly, obtusely angulate. medially produced into a triangular 

 notch on posterior margin of vertex between ocelli, lateral margins 

 short, length about equal to distance between ocelli, posterior 



