STAPHYLINID.E. 27 



veloped sexual characters of the sixth tergite, though these are 

 evidently of the same order. 



Atheta dama n. sp. Rather more slender and convex, piceous-black, the 

 abdomen only paler basally in apical half of the first three segments; an- 

 tennae dark, the basal joint pale; elytra dark piceo-testaceous, the legs 

 pale; integuments feebly shining, finely, asperulately and closely punctate, 

 the abdomen polished; head moderate, the eyes at a little less than their 

 own length from the base, the tempora rather prominent; carinae fine but 

 entire; antennae moderately long and stout, the second and third joints equal, 

 each as long as the fourth and fifth combined, the outer joints only moderately 

 transverse; prothorax but slightly transverse, barely a third wider than long, 

 much wider than the head and rather evidently narrower than the elytra, 

 parallel, the sides only very moderately rounded; elytra wider than long, 

 only slightly longer than the prothorax; abdomen parallel, much narrower 

 than the elytra, the sixth tergite (cf ) truncate broadly at apex and wholly 

 unmodified, except a very small rounded angulation at each side; sterna 

 as usual in this group, the metasternum a little shorter and more broadly 

 angulate; basal joint of the hind tarsi shorter than the second. Length 

 2.3 mm.; width 0.55 mm. New York (Catskill Mts.). 



Readily distinguishable from either of the preceding by its nar- 

 rower and much less transverse prothorax, longer antennse and 

 still more feeble sexual characters. 



Atheta temperans n. sp. Coloration, sculpture and lustre nearly as in 

 the preceding but very much larger and stouter, the elytra and legs pale 

 brownish-testaceous; vestiture rather longer and coarser; head nearly as 

 in dama, the carinae very fine and feeble but entire, the antennae still longer, 

 rather stout, the second and third joints much elongated and feebly obconical, 

 the second slightly the shorter, the tenth but just visibly wider than long; 

 prothorax larger, parallel and more strongly rounded at the sides, two-fifths 

 wider than long, very much wider than the head but only very little nar- 

 rower than the elytra, the latter less abbreviated though distinctly wider 

 than long, much longer than the prothorax -^abdomen thicker, parallel, 

 slightly narrower than the elytra, the fifth tergite less evidently or 

 scarcely longer than the fourth, the sixth (c?) broadly truncate and perfectly 

 even at apex, limited at each side by a very minute right angle having its 

 external side just visibly cariniform; basal joint of the hind tarsi much shorter 

 than the second. Length 2.7 mm.; width 0.66 mm. District of Columbia. 



In this species the male sexual characters are also very feeble, 

 but it may be known at once from dama by its much stouter form, 

 larger and more transverse prothorax and longer antennae. 



Atheta tractabilis n. sp. Rather stout, moderately convex, rufo-piceous, 

 the elytra and legs more flavate, the abdomen paler basally, the basal an- 

 tennal joints also pale; lustre rather shining, the punctures minute, not 

 dense, larger and slightly asperulate in the elytra; head transversely or- 

 bicular, the eyes at much less than their own length from the base, the car- 



