BUFFALO SOCIETY OF NATURAL SCIENCES 5 I 



Elytra hyaline, nervures concolorous or partly black, i. 



1. Uniformly pale greenish; elytral nervures concolorous, 



3. inornata Ball. 



-. More or less broadly marked with black above; elytral 

 nervures discolored or black, 2, semicrema Say. 



1. Acutalis tartarea Say. 



This is an intensely black species with the humeral mar- 

 gins, eyes, ocelli, and most of the lower surface pale; The 

 apical areoles are abruptly hyaline with heavy black dividing 

 nervures, the costal at apex pale. It seems to be common 

 throughout the middle Atlantic states and extends northward 

 through New York to Canada. 



2. Acutalis semicrema Say. 



The males of this species, so far as my observations extend, 

 are deep black above with a median transverse band on the face 

 and a broad submarginal lateral vitta on the pronotum, pale. 

 Elytral nervures heavy, black, excepting the costal at apex 

 and that defining the inner or posterior side of the large term- 

 inal areole, Lower surface and legs pale. In the female the 

 pronotum is pale with a large black dorsal spot which rests on 

 the anterior margin and extends for at least half its length 

 behind the humeri. The elytral nervures are more or less dis- 

 colored or in part black. I have seen examples of this species 

 that were taken at localities from southern New York to 

 Florida. They are doubtless variable in the extent of the pale 

 markings, and those from the south seem to have heavier 

 elytral nervures than do those from the north. Fairmaire des- 

 cribed this species as Acutalis anticonigra. 



3 Acutalis inornata Ball. 



This species was described by Dr. Ball in 1905. Ordina 

 rily it is of a uniform bright green color in life turning to dull 

 yellowish green in the dried specimen, but Mrs. Slosson has 

 recently sent me an example taken at Belleair, Florida, which 

 is marked with three brown spots or clouds on the front of the 

 pronotum, one above each eye and a smaller one on the summit 

 of the dorsum; the base of the metopidium has a transverse 



