38 MEMOIRS ON THE COLEOPTERA. 



which is not quite so long as in the preceding species, the lateral margins 

 somewhat thicker. Length 2.28 mm.; width 0.5 mm. California 

 (Truckee). 



This species resembles the preceding almost exactly in general 

 facies but is darker in coloration, with shorter prothorax, longer 

 elytra, feebly tapering abdomen and especially with different an- 

 tennal structure, the inflated last joint not being indicated at all in 



hiemalis. 



Oxypoda profuga n. sp. Moderately stout, convex anteriorly, piceous- 

 black in color, the prothorax and abdominal tip faintly paler and more 

 rufescent, the legs pale; punctures very fine, asperulate, rather closer on 

 the pronotum than on the elytra and quite as strong, close and very fine 

 on the abdomen, the vestiture not very conspicuous; head but slightly 

 wider than long, subtriangular, convex, scarcely more than half as wide 

 as the prothorax; antennae dark, the basal joint paler, the third slightly 

 shorter than the second, fourth as long as wide, tenth one-half wider than 

 long, the last elongate, ogivally pointed, almost as long as the preceding 

 three (c?), shorter (9); prothorax large, convex, fully one-half wider 

 than long, only moderately narrowed at apex, the sides evenly arcuate, 

 widest behind the middle, the base broadly arcuate, becoming feebly 

 subsinuate laterally, the surface unimpressed medially at base; elytra 

 rather strongly transverse, evidently narrower than the prothorax, the 

 suture four-fifths as long as the latter, the apical sinuses distinct; ab- 

 domen at base slightly narrower than the elytra, parallel basally, slightly 

 narrowing apically, the fifth tergite only moderately long, the margins 

 rather thick. Length 2.25 mm.; width 0.58 mm. California (coast 

 region from San Francisco to Mendocino). Abundant. 



One of the characteristic coast species; there is considerable 

 sexual difference in the development and apical conformation of 

 the antennae. 



Oxypoda flebilis n. sp. Similar to the preceding in coloration and 

 sculpture but more slender and slightly smaller, the fine punctures of 

 the abdomen slightly larger and more separated basally, becoming ex- 

 tremely fine and dense on the posterior tergites a rule exactly the reverse 

 of that prevailing in the wickhami group preceding; head as in profuga 

 but relatively larger, three-fifths as wide as the prothorax, the antennae 

 (cf) similar though rather more rapidly and strongly incrassate distally, 

 the third joint relatively shorter, the eleventh more constricted near 

 the middle, with the basal part more swollen and thicker than the pre- 

 ceding joints, not quite as long as the three preceding; prothorax similar 

 but narrower and less transverse, somewhat more narrowed anteriorly; 

 elytra parallel, relatively narrower and more elongate, distinctly nar- 

 rower than the prothorax, the suture somewhat longer than the latter, 

 impressed near the scutellum, the apical sinuses rather deep; abdomen 

 nearly as wide as the elytra though rather slender, parallel basally, \\ith 



