92 STUDIES IN NORTH AMERICAN MEMDR ACID.E 



running parallel for a short space and then meeting on the dorsal carina in 

 a very obtuse angle; dorsal spot poorly defined and almost touching the 

 angle of the anterior vitta; posterior transverse vitta usually distinct, the 

 surface behind it a brighter ferruginous. Elytra almost uniformly rufo- 

 fuscous, dark at base and then a little clearer across the anteapical areoles; 

 the pale band on the base of the tergum showing through feebly. Legs 

 ferruginous sometimes with a black band above on the femora. Face pale 

 coarsely punctured with blackish, the elytral suture blackish. Usually there 

 are four ferruginous or black points, two next the ocelli and two others 

 above them on the base of the vertex. Clypeus linear and flat, its apex 

 moderately narrowed, but little incurved and exceeding the lorae by nearly 

 their own length. Pygofers of the female proportionately shorter and 

 thicker than in cinereus. Length 6 mm. 



Described from four females in the Cornell University col- 

 lection taken at Ithaca, N. Y. and three females in the collec- 

 tion of Mr. W. T. Davis, two from Staten Island, N. Y., and one 

 from Jamesburg, N. J. This species is very close to cinereus 

 but the clypeus is more produced and less incurved, the anterior 

 vitta is better defined and is strongly angled opposite the dorsal 

 spot and then crosses the carina at a very slight angle. This 

 with cinereus and griseus form a little group of species quite 

 distinct from their congeners. 



Subgenus Atymna Stal. 



Large species, 7-9 mm. ; pronotum well elevated anteriorly, 1. 

 Small species, 5-6 mm. ; pronotum feebly arcuated above, 2. 



1. Pronotum well elevated and rounded before, sinuated to the 



more slender posterior process ; inhabits Arizona, 



1, simplex VanD. 



Pronotum almost vertical before, sloping and nearly rec- 

 tilinear to the apex, 2, easterner Fh. 



2. Female more coarsely punctured; the face uneven with the 



clypeus narrow and distinctly produced and incurved at 

 apex; blackish above with a yellow dorsal vitta, 



3, querci Fh. 



Female green, polished, finely punctured; face smooth with 

 the clypeus broad, rounded, and highly polished; male 

 green like the female but smaller, less elevated and with 

 the clypeus less tumid and polished, 4, inomatus Say. 



