BUFFALO SOCIETY OF NATURAL SCIENCES 49 



clouded with darker but this peculiar color is very likely due, 

 in part at least, to immaturity. 



These notes are taken from a specimen from Lancaster, 

 California, in the collection of Prof. E. D. Ball, and another 

 that certainly pertains to the same species, in the collection of 

 Cornell University, was taken at Seattle, Washington. 



Dr. Ball possesses another specimen taken by Prof. Wick- 

 ham at Independence, California, which is stiil more depressed 

 with the carina; yet more rounded off and the whole surface is 

 more coarsely punctured. Here the hind edge of the last 

 ventral segment of the female is truncated with a broad ovate 

 triangular median notch and the attenuated apex of the pro- 

 notum is strongly decurved. It has the same testaceous- 

 brown color but the abdomen and pectus in part are black. 

 A male of this form is in the Cornell University collection 

 which was taken at Riverside, California. These two may 

 represent a distinct species but my material is too meagre to 

 warrant description. 



10. Stictocephala lutea Walker, PI. i, figs. 14,31. 



This is the common smaller form that seems to be abun- 

 dant throughout the eastern states from Georgia to Canada. It 

 may be distinguished by the convex metopidium which term- 

 inates a little behind the middle of the high well arcuated 

 dorsum, and by the black pectus and femora. The edges of 

 the metopidium are rounded and scarcely carinated and the 

 short acute tip of the pronotum just about reaches the apex of 

 the abdomen. Last ventral segment of the female rather long; 

 its hind edge broadly and slightly emarginate, with the median 

 notch extremely minute or wanting, and the edges either side 

 moderately oblique and nearly rectilinear. The male plates 

 are broad and short, triangular- conical, equalling the pygofers. 



11. Stictocephala diminuta n. sp. PI. 1, fig. 21. 



Aspect of rotundata Stal but more closely allied to lutea Walker. 

 Head short, broadly rounded before, the clypeus very broad and with the 

 lorse continuing the contour of the cheeks; surface little roughened, closely 

 and evenly punctured. Metopidium conical, convex, the sides converging 

 almost from the base and meeting but little behind the middle; anterior 

 margin strongly sinuated. Pronotum moderately elevated, its short and 

 very acute apex scarcely attaining the apex of the abdomen. Last ventral 



