STAPHYLINID/E. 39 



cylindric and strongly obconic respectively; prothorax only moderately 

 transverse, parallel and nearly straight at the sides, rounding apically and 

 basally, the basal angles obtuse, distinctly though not very greatly wider 

 than the head and correspondingly narrower than the elytra, the latter rather 

 large, very moderately transverse, much longer as well as distinctly wider 

 than the prothorax; abdomen evidently narrower than the elytra, parallel 

 throughout, the sides not quite straight, the fifth tergite distinctly longer 

 than the fourth ; mesosternal process becoming fine and aciculate apically 

 at about the middle of the coxae and well separated from the acute apex of 

 the rather long metasternal projection; two basal joints of the hind tarsi short 

 and equal, the third and fourth longer and also equal. Length 2.0 mm.; 

 width 0.52 mm. Queen Charlotte Islands (Massett), Keen. 



Very distinct by reason of the complete absence of the usual 

 infra-lateral carinse of the head. The sex of the types is not very 

 definite, the sixth tergite being feebly sinuato-truncate medially, 

 with the edge unmodified. 



Atheta luscitiosa n. sp.- Rather stout, convex and fusoid, shining, minutely 

 punctulate, sparsely and simply so except on the elytra, where the punctures 

 are strongly asperate and close; color dark rufo-piceous throughout, the legs 

 and antennae concolorous, the abdomen blackish; head transversely orbic- 

 ular, the eyes at about their own length from the base, not at all prominent, 

 the small facets convex but separated anteriorly, becoming flat and diffused 

 posteriorly, the carinae strong and entire; antennae rather short and slender, 

 feebly and gradually incrassate, the outer joints but slightly wider than long, 

 the last slender and not as long as the two preceding, the second greatly, 

 the third very moderately, elongate; prothorax convex and only moderately 

 transverse, parallel and very moderately rounded at the sides, distinctly 

 though not very greatly wider than the head and much narrower than the 

 elytra, obsoletely impressed before the scutellum; elytra parallel, large, 

 only a little wider than long, very much longer than the prothorax; ab- 

 domen narrower than the elytra, parallel, gradually narrowing a little be- 

 hind, the fifth tergite much longer than the fourth, the sixth (9) rounded 

 apically; mesosternal process finely aciculate apically, extending well behind 

 the middle of the coxae and separated from the short obtuse metasternum 

 by a rather long depressed space; posterior tarsi long, the basal joint appar- 

 ently shorter than the second. Length 2.7 mm.; width 0.77 mm. California 

 (Lake Tahoe). 



The peculiarly long second antennal joint in comparison with 

 the much shorter third joint, in conjunction with the structure of 

 the eyes and sterna, will render this species very easy to identify. 



Atheta innocens n. sp. Stout, nearly parallel, moderately convex, some- 

 what shining, black, the prothorax barely picescent, the elytra castaneous, 

 darker toward the scutellum, the legs pale; punctures fine, moderately 

 separated, feebly asperulate; head rather large, transverse, parallel, the 

 eyes well developed, rather convex, setose, at distinctly less than their own 



