STAPHYLINID^. 49 



tarsi as in sejuncta. Length 2.0-2.4 rnm.; width 0.7-0.78 mm. Nevada 

 (Reno) and California (Calaveras Co.). 



This species may be distinguished from either of the two preceding 

 by the larger eyes, shorter terminal and longer basal joint of the 

 antennae, relatively larger prothorax, with a deeper and rounded 

 basal impression, shorter elytra and more parallel abdomen. 



Oxypoda regressa n. sp. Rather stout, convex and shining, more or 

 less pale piceous-brown, the head and a very faint diffused abdominal 

 cloud slightly darker; punctures of the pronotum very fine, sparse, of 

 the elytra asperulate and less sparse, of the abdomen as close as those 

 of the elytra but very fine, the vestiture palish, not close; head moder- 

 ate, three-fifths as wide as the prothorax, slightly transverse, the eyes 

 rather convex, at about their own length from the base; antennae blackish, 

 pale basally, short, feebly incrassate though somewhat thick distally, 

 the first three joints subequal, the first thickest, the third slightly the 

 shortest and obconical, fourth nearly as long as wide, subparallel, fifth 

 to tenth transverse, obtrapezoidal and similar, increasing but slightly, 

 the ninth and tenth mutually similar, the last small, ogivally pointed, 

 not longer than the two preceding; prothorax short, two-thirds wider 

 than long, the base and sides well rounded, the latter strongly converging 

 from base to apex, the ante-scutellar impression very feeble and trans- 

 verse; elytra large, slightly transverse, with diverging and nearly straight 

 sides, at base exactly equal in width to the prothorax and closely fitted 

 thereto, at apex slightly wider, the suture two-fifths longer; abdomen at 

 base fully as wide as the prothorax, the sides just visibly converging and 

 straight thence to the fifth tergite, which is more than four-fifths as 

 wide as the first; hind tarsi shorter than in the preceding species, the 

 basal joint not longer than the next two combined. Length 1.75 mm.; 

 width 0.65 mm. Vancouver Island (Victoria), Wickham. 



Differs from the three preceding in its paler coloration, still 

 sparser fine punctures, shorter antennae, with more transverse 

 joints and a smaller terminal joint and shorter tarsi. 



Oxypoda perita n. sp. -Moderately stout, elongate-fusoid, distinctly 

 shining, with very fine and widely separated punctures, the elytra less 

 shining, with stronger and denser sculpture, the vestiture noticeably 

 long, palish; color black, the elytra moderately pale castaneous, the 

 abdomen rufescent apically, the legs pale brown; head three-fifths as 

 wide as the prothorax, slightly transverse, the eyes moderate; antennae 

 pale brown throughout, rather thick, longer than in regressa, the first 

 three joints long, subequal in thickness, the third the shortest, fourth 

 distinctly transverse, the outer joints moderately transverse, the ninth 

 shorter than the tenth, the last gradually pointed, as long as the two 

 preceding; prothorax only one-half wider than long, convex, with a feeble 

 transverse ante-scutellar impression, the sides converging and arcuate 

 throughout, the base rounded; elytra only moderately transverse, evi- 



T. L. Casey, Mem. Col. II, August 191 1. 



