STAPHYLINID.E. 153 



Acrotona (Neada) lubricans n. sp. Rather stout, subparallel and convex, 

 very highly polished, the micro-reticulation fine and regular but very feeble, 

 closer and transverse on the abdomen, the punctures very minute and sparse 

 throughout, widely separated and feeble even on the elytra, slightly more 

 distinct but sparse on the abdomen; color blackish-piceous, the elytra pale 

 albido-flavate, clouded with black basally and near each posterior angle, 

 the legs pale; head orbicular though wider than long, the eyes large, prominent, 

 at scarcely half their length from the base, the tempora rapidly arcuato- 

 convergent behind them; antennae rather long, slender basally, gradually 

 somewhat strongly incrassate distally, blackish throughout, the basal joint 

 but little longer and thicker than two or three, which are subequal, the 

 outer joints evidently transverse, the last pointed, as long as the two pre- 

 ceding; prothorax large, convex, moderately transverse, rounded at base, 

 the sides strongly rounded and evidently converging from base to apex, the 

 latter distinctly narrower than the base, much wider than the head and fully 

 as wide as the elytra, unimpressed; elytra rather short and transverse, sub- 

 parallel, flat, the suture slightly longer than the prothorax, the apices not 

 sinuate externally; abdomen subparallel. a little narrower than the elytra, 

 not at all tapering, the sixth tergite (d") truncate, the truncature evenly and 

 finely crenulate, the lateral teeth small and not projecting though feebly 

 hollowed within. Length 1.65-1.9 mm.; width 0.4-0.5 mm. Rhode Island 

 (Boston Neck). 



I at first thought that this might be the Atheta (s. str.) fulgens, 

 of Bernhauer, but, apart from the fact that this is by no means a 

 typical Atheta, but much more closely allied to Acrotona, it is noted 

 that the peculiar coloration of the elytra in lubricans does not seem 

 to characterize fulgens and, in the latter, the elytra are only as long 

 as the prothorax. Otherwise there is a very close agreement, and 

 I have but little doubt that fulgens will take its place in this sub- 

 genus, and that Dr. Bernhauer has been hasty in fixing its position 

 in the series as a true Atheta. 



Colpodota Rey. 



This name is here applied to a considerable number of species, 

 for the most part minute, of very slender form and with an acumi- 

 nate abdomen, of sober coloration, strongly inflexed and laterally 

 invisible hypomera, contiguous middle coxae or very nearly so, 

 transverse or very short unadvanced metasternum and slender tarsi, 

 the first four joints of the posterior being equal. The cephalic 

 carinae are generally entire and the antennas well developed and 

 usually more incrassate than in Acrotona; the sexual characters 

 are very feeble. 



