STAPHYLINID^: 119 



throughout, gradually moderately incrassate, the third joint distinctly 

 shorter than the second and not twice as long as wide, the fourth not 

 quite as long as wide, strongly obtrapezoidal, the outer joints mutually 

 similar, about a third wider than long, the last acutely ogival, not quite 

 as long as the two preceding; prothorax a little shorter, less convex and 

 more parallel than in the preceding, with evenly and moderately rounded 

 sides, unimpressed; elytra large, but little shorter than wide, more nearly 

 parallel, a fourth wider, the suture nearly one-half longer, than the pro- 

 thorax; abdomen notably slender, much narrower than the elytra, paral- 

 lel, with straight sides, the fifth tergite longer than the fourth; middle 

 coxae evidently separated, the mesosternal process becoming parallel 

 but with its tip narrowly truncate, the metasternal projection much 

 shorter than in the preceding, more than twice as wide as long though 

 sharply angular. Length 1.9 mm.; width 0.5 mm. Manitoba (A weme), 

 -Criddle. 



The relationship in width of the elytra, prothorax and head, which 

 gradually decrease, is almost exactly as in militaris, but it differs 

 in its still more intensely black coloration and in cephalic, antennal 

 and intermesocoxal structure. 



Atheta (Traumoecia) obsequens n. sp. Moderately slender and convex, 

 shining, dark rufo-piceous, the head black, the elytra paler, dark brown- 

 ish-testaceous, clouded at the scutellum, the abdomen black except at 

 apex and broadly toward base, the legs pale; punctures fine, rather 

 close, asperulate, strongly so and dense on the elytra, fine and sparse 

 on the abdomen, where the micro-reticulation is transversely polygonal; 

 pubescence short and inconspicuous; head large, very short and trans- 

 verse, four-fifths as wide as the prothorax, the eyes convex, at fully 

 two-thirds their length from the base, the tempora equally prominent, 

 parallel and straight for a short distance, then strongly and abruptly 

 oblique to the base, the carinae fine, not quite entire; antennae piceous, 

 slender and paler basally, extending to basal third of the elytra, gradually 

 and distinctly incrassate, the third joint rather longer than the second, 

 very strongly obconic, the fourth distinctly wider than long, tenth one- 

 half wider than long, the last more slender than the preceding, conical and 

 as long as the ninth and tenth ; prothorax two-fifths wider than long, paral- 

 lel and evenly, moderately rounded at the sides, the median line feebly and 

 equally impressed throughout the length; elytra moderately transverse, 

 with feebly diverging sides, at base just visibly wider, the suture a fourth 

 longer, than the prothorax; abdomen slender, very much narrower 

 than the elytra, parallel, with nearly straight sides, the fifth tergite a 

 third longer than the fourth; middle coxae narrowly separated, the meta- 

 sternum broadly angulate. Length 2.3 mm.; width 0.52 mm. New 

 York (Catskill Mts.). 



The exact position of this species is doubtful; it is rather too 

 slender to be associated with gnoma and other true Athetids, but 

 the antennae are too incrassate distally to harmonize very well 

 with the other species here assigned to Traumcecia. 



