No. 34-] HEMIPTERA OF CONNECTICUT I CICADELLIDAE. 8 1 



2. Very short and broad (almost as broad as long), clavus broadly 



truncate at apex Penthimia, p. 8i 



Broad elongate, clavus not truncate at apex Gypona, p. 8i 



Penthimia Germar. 



Vertex very short and broad, including eyes, narrower than 



pronotum. Elytra broad, very short, exceeding abdomen in length, 



appendix broad. Only one species is known in the United States. 



P. americana Fitch. Penthimia vicaria Walker. Penthimia picta 



Provancher. 



Homop. N. Y. St. Cab., 57, 1851. 



Resembling a "Cercopid" of the genus Clastopera. Black to 

 reddish brown, vertex broadly rounded, transversely striate ; pro- 

 notum transversely striate. Elytra short, very broad, rather 

 narrowly rounded at apex. Appendix broad. Length 5-6 mm. 



Occurs on oak, hickory and other shrubs during early summer. 



New Haven, 27 June, 1902 (E. J. S. M.) ; 21 May, 1910 (A. B. C.) ; 

 11 June, 1914 (B. H. W.) ; 9 June, 1914 (Q. S. L.) ; Westville, 19 June, 

 1904 (W. E. B.) ; Scotland, 27 July, 1904 (B. H. W.) ; Portland, 5 June, 

 1914 (M. P. Z.) ; Stonington, May, 1914 (I. W. D; Ansonia, 26 May, 1918 

 (M. P. Z.) ; Branford, 8, 13 June, 1918 (B. H. W.) ; Hamden, 18 June, 

 1919 (M. P. Z.) ; Middlebury, 20 June, 1916 (M. P. Z.) ; Milford, 22 June, 

 1917 (M. P. Z.). 



Gypona Germar. 



Usually large, body broad and oval. Head broad, rather short, 

 flattened, usually well rounded anteriorly and often margin with a 

 thin edge. Elytra broad, moderately long. 



Members of this group commonly feed on grasses, and often 

 are taken from shrubs on which they feed. 



The genus has recently been revised by Dr. Ball and although 

 the subgenus names are not used, the synonymy and arrangement 

 has been followed in this treatment. 



Key to Species. 



1. Vertex acutely angled with front, margin rather thin and foliaceous 2 

 Vertex rounding to front, or with margin thick and not foliaceous 6 



2. Elytra usually reticulate, some shade of green with few markings 3 

 Elytra not reticulate usually brownish or with black markings .... 5 



3. Elytra rather smooth, female segment concavely rounding 4 



Elytra strongly rugose, female segment rectangularly emarginate 



rugosa 



4. Clavus of elytra usually reticulate, and more or less scarlet colora- 



tion upon reticulations. Vertex and pronotum with scarlet 



stripes • octolineata 



Clavus of elytra usually not reticulate, no scarlet color on elytra^ 

 vertex and pronotum with six orange or yellow stripes . . .var. striata. 



5. Form broad and rather short, above black shining, or greenish with 



a black spot on pronotum behind either eye melanota 



More elongate, vertex very long, cinereous in color, female segment 

 bisinuate • .cinerea 



