STAPHYLINID.E 113 



to read these descriptions, he may be able to publish the proper 

 synonymy, for his diagnosis of metlakatlana is too incomplete and 

 ambiguous to afford satisfactory means of identification. 



Atheta districta n. sp. Stout, subparallel, rather convex and shining, 

 finely, not densely, asperulately punctate, closely but still notably finely 

 on the elytra, the polished abdomen with numerous fine punctures and 

 having the minute sculpture excessively finely, closely, transversely 

 strigilate; pubescence rather short, not very conspicuous; coloration 

 as in the preceding; head moderate, transverse, two-thirds as wide as the 

 prothorax, the eyes large, at less than their own length from the base, the 

 tempora subequally prominent, parallel and nearly straight, then gradu- 

 ally rounding to the base, the carinae very fine though subentire; an- 

 tennae rather slender, black, the basal joint paler, piceous, rather long, 

 gradually and only very slightly incrassate distally, the third joint rather 

 longer than the first and much longer than the second, fourth unusually 

 elongate, fully one-half longer than wide, fifth to seventh a little longer 

 than wide, the ninth and tenth mutually similar and only very little 

 wider than long, the last slender, ogival, as long as the two preceding; 

 prothorax in outline nearly as in the preceding but not quite so transverse 

 and with merely a very feeble transversely linear ante-scutellar impres- 

 sion; elytra nearly as in the preceding but rather broader, at base slightly 

 wider, the suture but feebly impressed basally and fully a third longer, 

 than the prothorax; abdomen only slightly narrower than the elytra, 

 parallel, narrowing distinctly near the apex, the tergites equal in length; 

 mesosternal process acutely triangular, much more rapidly widening 

 anteriorly from the point than in any allied species, less free than in the 

 preceding but separated by about the same distance from the short, 

 broadly and obtusely subangulate metasternum. Length 2.8 mm.: 

 width o.S mm. British Columbia (Metlakatla), Keen. 



Differing radically from the preceding in its much more slender 

 and peculiar antennae and in the intermesocoxal structure, in the 

 sculpture of the abdomen and in many other ways; the type is a 

 female. 



Atheta alaskana n. sp. Less parallel and rather smaller though 

 similar to the preceding in coloration, lustre and sculpture but with the 

 punctures stronger, more asperate and denser, especially on the pronotum, 

 the minute close abdominal strigilation almost similar, the pubescence 

 rather longer and coarser, pale as usual; head nearly as in districta 

 throughout, the eyes a little less prominent; antennae long, blackish, 

 slender basally, gradually and very moderately incrassate distally, the 

 third joint about as long as the first, longer than the second, fourth a 

 third longer than wide, less parallel than in the preceding species, fifth 

 not evidently longer than wide, the outer joints mutually similar and 

 very slightly transverse, the last acutely pointed, as long as the two pre- 

 ceding; prothorax small, only a third wider than the head, nearly one- 



T. L. Casey, Mem. Col. II, August, 1911. 



