o. i;04l. THE INSECT FAMILY DELPHACIDAE— CRAWFORD. 605 



p. Frone about twice as broad below as above, sides not straight, bulging 

 roundly. 

 g^. Hind wings not aborted, normal. 

 A^ Body moderately large, verj^ light hvo-wn. . .constrictus, new species. 

 h'^. Body rather small, slender, almost white. 



co7istrictus minutus, new variety. 

 g'^. Hind wings aborted; elytra narrow, somewhat shortened. 



setigerus Osbom. 

 e?. Frons scarcely constricted above; abdomen of female light, dark in male. 



salina Ball, 

 c^. Frons of uniform color, carinse not margined with black, 

 rf'. Body at least above brown to black; genital styles of male not bifid. 

 e' . Frontal carinse very sharply distinct at apex of head . 

 /'. Frons somewhat sinuate apically; elytra hyaline, brown at tip of 



, clavus scutellaris Berg. 



/-. Frons not sinuate at apex. 



g^. Genital styles of male styliform, very slender, incurved, acute at 

 tip. 

 hK Calcar normal; ventral fossas of pygofers very deep; macropterous 



elytra smoky with granulate nervxu-es piceus Van Duzee. 



h\ Calcar unusually large, foliaceous; ventral fossae of pygofers shal- 

 low, nearly filled by processes of anal tube; elytra white. 



davisi Van Duzee. 

 gr^. Genital styles of male cultrate, short, stout, straight on inner margin; 

 vertex very narrow at apex. 

 h^. Body brown to dark brown; male pygofers only moderately stout; 



styles not prominent notulus Germar. 



¥. Body light brown, abdomen light colored, broad; male pygofers 

 broader transversely; genital styles rather prominent. 



notulus flavus, new variety. 

 <2. Frontal carinse more roundly protruding at apex of head, not sharp in out- 

 line, pygofers of male short, broad, bulging on outside of ventral fossae; 



genital styles very short, inconspicuous metzaria, new species. 



d-. Body light brown to yellow, 

 c'. Male pygofers not bifurcate or abnormal; styles simple, cultrate, arched, 

 not much divergent; body rather large; vertex and frons rather broad. 



reciangularis, new species. 



«*. Male pygofers rather abnormally developed, produced conspicuously or 



bifurcate. 



/'. Pygofers produced caudad on each side of anal tube into a very slender, 



long, bifm-cate, process; styles linear, long, bifiu-cate at tip; notum 



with a light median vitta hifurcatus, new species. 



p. Aperture of pygofers with a long, incurved, spiniform process on margin 

 on each side midway; styles slightly divergent, acute at tip; notum 



without vitta; color orange yellow aurantii, new species. 



6'. Carinse of head more or less evanescent, quite indistinct or subobsolete on apex; 

 vertex often rather broad, rounded in front, only slightly produced before 

 eyes. 

 c\ Elytra hyaline, or not maculated. 

 d^. Color dark reddish brown, pronotum white; antennae longer than frons. 



albicollis Melichar. 

 d-. Color straw yellow, abdomen of male brown; antennae shorter than frons. 



parvulus Ball, 

 c^. Elytra more or less extensively maculated. 



