GEORGE M. GREENE 261 



Elytra purplish black, confluently but not deeply punctured, oblong quadrate, 

 rounded behind, with the lateral margin horizontally dilated, and elevated on 

 the edge, a submarginal elevated line beginning at the humerus, and on a short, 

 longitudinal furrow within the elevated line; base with an obsolete tubercular 

 elevation in the middle; suture slightly elevated. Breast, abdomen beneath, 

 and feet deep black. 



"This species probably bears a close resemblance to the atripennis, S., which 

 has the thorax and body beneath rufous. 



"The specific name unicolor was applied to specimens in which the rufous 

 color of the sides of the thorax was indistinct or obsolete. It is, however, 

 inappropriate, and is therefore changed." (This is 6891 [Henshaw], Diabrotica 

 atripennis Say.) 



TRANS. AM. ENT. SOC, XLIV. 



