26 Bulletin of the Brooklyn Entomological Society Voi. viii 



Three New Species of Hister [Coleop.] 



By Charles Schaeffer, Brooklyn, N. Y. 

 GROUP DEPURATOR. 



Hister puncticoUis sp. n. 



Broadly oval, black. Head scarcely punctuate; frontal 

 stria entire. Pro thorax feebly arcuate at sides; outer lateral 

 stria absent, inner stria deeply impressed; surface smooth, almost 

 impunctate, except a number of coarse punctures at sides near 

 the inner stria. Elytra with four entire striae; fifth short apical; 

 sutural attaining the middle but more or less abbreviated at apex. 

 Subhumeral stria interrupted, apical portion distinct and deeply 

 impressed, basal portion small and variable in distinctness. 

 Oblique humeral stria distinct and finely impressed. Pro- 

 pygidiimi moderately coarsely and not densely punctate at sides, 

 punctures finer at middle and apex ; pygidium similarly punctate 

 and both with scarcely any finer punctures intermixed. Pros- 

 temal lobe broadly rounded and strongly margined at apex; 

 lateral striae absent. Mesostemum emarginate; marginal striae 

 entire. Epipleurae bistriate. Anterior tibiae tridentate; apical 

 tooth no bifid. Length 6 mm. White Sulphur, West Virginia, 

 collected by Lieut. -Colonel Wirt Robinson. 



The interrupted subhumeral stria and tridentate anterior 

 tibia places this species in Horn's group depurator. By its unis- 

 triate prothorax it has to be associated with semisculptus and 

 dispar, from the former it differs in having a bistriate epipleura, 

 three-dentate anterior tibiae and elytra with four entire striae; 

 from the latter the distinct apical portion of the subhumeral, 

 the four entire elytral striae and the thorax near the inner stria 

 coarsely punctate will separate this species. 

 Hister carinifrons sp. n. 



Moderately broadly oval, black, shining. Head moderately 

 densely punctate, punctures not coarse; frontal stria obliterated 

 at apex but replaced by a more or less distinct carina. Prothorax 

 bistriate, outer stria entire; surface almost impunctate. Elytra 

 f our-striate ; fourth stria slightly abbreviated at apex; sutural 

 stria not quite extending to apex, feebly curved inside at base; 

 subhumeral stria represented by only the basal portion which is 



