18 Cincinnati Society of Natural History 



Clypeus bidentate in male. Prothorax armed in male. Body short, 

 broad, shaped and proportioned as in opalescens, but smaller and 

 glabrous. Staten Island, N. Y davisi Dury 



Clypeus monocerate in males. Apex of prothorax, with two long 

 slender porre.ct processes. Rhode Island to Alabama.. . .miles Casey 



Clypeus reflexed, angulate at sides. Prothorax, with two thick, 

 porrect, blunt horns, which are carinate above. Ohio. 



singulari.s Dury 

 2- — Vestiture very fine and inconspicuous. Side margin of prothorax 

 very wide; subexplanate. Pennsylvania, Ohio and Virginia. 



opalescens Casey 



Vestiture composed of very fine decumbent, inconspicuous pubescence. 

 Body bicolored. Elj'tra substriate. Prothoracic side margin 



narrower. Oregon moznettei Dury 



. Vestiture not conspicuous. Composed of fine simple subdecumbent 

 hairs. Prothoracic side margin narrower. Elytra not substriate. 

 British Columbia to Oregon biarmata Mann 



Vestiture composed of very conspicuous scjuamules. Clypeus quadri- 

 dentate. Massachusetts quadridentatus Dury 



Vestiture composed of coar.se, stiff, suberect squam.ules. Epistoma 

 in male biangulate and with apex of prothorax subangularly pro- 

 duced and rounded, with tip very narrowly sinuato-truncate. 

 Pennsylvania insolens Casey 



Vestiture composed of ralher dense, short, stout yellow bristles. 

 Epistoma reflexed and produced into two widely separated horns, 

 shaiply pointed. Apex of prothorax produced into two prominent 

 triangular flat horns. Cincinnati, Ohio castlei Dury 



STRIGOCIS, n. genus 



Body elongate, subcylindrical. Vestiture, consisting of 

 short, stiff inclined setae. Maxillary palpi, with the terminal 

 joint truncate at tip. The outer edge thickened and grooved, 

 the inner side thin and blade-like. Antennae 10-jointed. The 

 anterior margin of epistoma produced in both sexes. Proster- 

 num long before coxae, carinate at middle, strongly and ob- 

 liquely strigose. Front tiliiae flattened externally; produced 

 and spinulose at apex. Elytral suture .sharply margined. 

 This genus is founded on a species that will not fit any so far 

 defined, having a combination of their characters. Related to 

 Orthocis in ' the margined elytral suture and to Xestocis in 

 prosternal carination. 



