STAPHYLINID.E. 27 



feebly paler apically, the legs pale; punctures fine, close and asperulate, 

 rather coarse, rounded, shallow and less close on the head, much less 

 close and elongate-asperulate on the abdomen, the vestiture close, sparser 

 on the head and abdomen; head transverse, three-fifths as wide as the 

 prothorax, the eyes slightly convex and at nearly their own length from 

 the base; antennae pale throughout, short, stout, incrassate distally, 

 the second joint not quite so long or stout as the first, a little longer than 

 the third, fourth not as long as wide, tenth almost twice as wide as long, 

 the last very large, rather swollen, subcylindric, obtusely ogival at tip, 

 not obviously constricted medially and much longer than the two pre- 

 ceding; prothorax nearly two-thirds wider than long, subparallel, the 

 sides very moderately arcuate, converging a little more apically, the 

 base rounded; surface with a very faint transverse impression before 

 the scutellum; elytra parallel, much shorter than wide, equal in width 

 to the prothorax, the suture only very slightly longer, the apical sinuses 

 evident; abdomen at base nearly as wide as the elytra, gradually slightly 

 tapering with straight sides from base to the fifth tergite, which is less 

 than one-half longer than the fourth. Length 2.0 mm.; width 0.53 mm. 

 New York (Catskill Mts.). 



A very distinct species, to be known by coloration, sculpture and 

 particularly by its short stout antennae, with the large last joint 

 perceptibly thicker and swollen. 



Group III. 



This is the largest group of the genus. The two following are 

 among the largest of our species and conform closely to convergens 

 and iowensis Csy., in structure and facies. 



Oxypoda profecta n. sp. Stout, fusoid, rather convex, feebly shining, 

 blackish-piceous, the elytra and legs pale luteous-brown; punctures 

 minute and close-set throughout, the pubescence pale, rather long, abun- 

 dant and only subdecumbent; head a little more than half as wide as the 

 prothorax, slightly transverse, parallel and rounded at the sides, the eyes 

 but very slightly prominent though well developed, with the facets 

 larger and flatter posteriorly; antennae moderately short, rather stout and 

 conspicuously incrassate, blackish, gradually testaceous basally, the 

 second joint as long as the first but thinner, only very slightly longer 

 than the third, the fourth slightly longer than wide, the outer joints 

 very moderately transverse, the last equal to the two preceding, gradually 

 pointed from behind the middle, with an irregular constriction anteriorly 

 on the inner side only; prothorax large, less than one-half wider than 

 long, feebly inflated basally, with the sides there subangularly rounded, 

 thence narrowed anteriorly, with very feebly arcuate sides, rounded at 

 base, unimpressed; elytra parallel, slightly narrower than the prothorax, 

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

 domen at base not quite as wide as the elytra, gradually rather strongly 

 tapering from base to apex the fifth tergite very much longer than the 



