566 Coleopterological Notices, V. 



S. profllSIIS. — Broadly oval, strongly convex, highly polished, hrilliant 

 metallic bluish-green in color. Head nearly flat above, minutely, sparsely 

 piinotulate, with a small deep median puncture near the base; marginal striae 

 entire but not united in front, where they are flexed forward to the middle of 

 the clypeus ; transverse clypeal suture sometimes distinct. Prothoiax scarcely 

 twice as wide as long ; sides strongly convergent and nearly straight to apical 

 tliird, then broadly rounded ; marginal stria fine, not quite attaining the base ; 

 punctures wanting except sparsely and very narrowly along the basal margin, 

 and in a moderately wide dense area from the apex to basal third at some dis- 

 tance from the lateral margin. Elytra nearly as in pennsylvanicus, the third 

 dorsal longer, the sutural obsolescent toward base and the posterior punctured 

 area scarcely extending beyond the middle. Propygidium coarsely, sparsely 

 punctate; pygidium elongate, gradually attenuate and convex toward apex, 

 rather coarsely but not very densely punctate, with two elongate-oval impnnc- 

 tate subapical areas, separated by a longitudinal carina, broadly impressed 

 toward the sides. Prosternum nearly as in pejinsylvanicus, but with the basal 

 part of the striae longer, the apical much shorter ; mesosternum strongly but 

 sparsely punctate, the apical stria broadly interrupted. Anterior tibiae broad, 

 with three or four strong external teeth. Length 4.0-5.5 mm. ; width 3.0— 

 3.8 mm. 



Kansas; Colorado; Texas (Galveston). 



This species closely resembles pennsylvariicus, but may be readily 

 distinguished by the structure of the pygidium, more strongly trape- 

 zoidal prothorax, coarser broader and stronger deniiculation of the 

 anterior tibiae, broadly interrupted mesosternal border, less punctate 

 integuments and several other details. From seneicoUis it differs 

 altogether in the structure of the prosternal striae and in elytral 

 punctuation. The apical carina of the pygidium is at all times 

 feeble and occasionally becomes obsolete. 



S. SOCillS. — Oblong-oval, piceous-hlack, highly polished, only moderately 

 convex. Head feebly but densely, subrugosely punctate, the marginal stria 

 obsolete ; clypeus rather short and broad. Prothorax more than twice as wide 

 as long, the sides broadly, rather strongly arcuate, becoming almost parallel 

 near the base, marginal stria fine, distinct ; disk minutely, sparsely punctulate, 

 becoming broadly deeply strongly and densely punctate sublaterally, and nar- 

 rowly along the basal margin. Elytra one-half longer than the prothorax, a 

 little wider, slightly swollen laterally toward base ; marginal stria coarse but 

 feeble, inferior, not attaining the middle of the apices ; internal subhumeral 

 represented by a short deep stria behind the middle ; oblique humeral deep, 

 distinct and straight ; four dorsals strong, evenly, feebly arcuate, scarcely 

 punctate, long, almost exactly equal in length and attaining apical third, only 

 slightly hooked at base, the fourth joining the sutural which is distinct to the 

 apex ; punctures strong but sparse, extending beyond the middle in the first 

 three interspaces gradually becoming very fine, along the suture not extend- 



