STAPHYLINID^E. 41 



usual, not very finely faceted and at less than their own length from the base, 

 the carinse fine and feeble, extending to the apex but obsolete far before the 

 base; antennae rather long, slender, scarcely at all incrassate, the outer 

 joints somewhat longer than wide, the last oval, scarcely more than one-half 

 longer than the tenth, the second and third much elongated, equal; pro- 

 thorax very moderately transverse, evidently though not greatly wider 

 than the head and much narrower than the elytra, parallel and evenly but 

 feebly rounded at the sides, scarcely impressed ; elytra rather transverse, the 

 suture evidently longer than the prothorax; abdomen wide, slightly nar- 

 rower than the elytra, parallel, with feebly arcuate sides and thick margins, 

 the fourth and fifth tergites equal, the sixth (9) broadly arcuate apically; 

 mesosternal process barely extending to the middle of the coxae, gradually 

 narrowed to the rather acute but in no way prolonged or aciculate apex, which 

 is at a considerable distance from the large equilatero-triangular metasternal 

 projection. Length 3.0 mm.; width 0.83 mm. Virginia (Newport News). 



The rather large size, remarkable antennae and peculiar infra- 

 lateral carinse of the head will serve to identify this species very 

 readily. 



The following ten species have the sixth tergite of the male very 

 obviously crenulate at apex; they are probably for the most part 

 fungivorous in habits: 



Atheta citata n. sp. Nearly parallel, rather slender, moderately convex 

 and shining, the micro-reticulation fine, rather feeble except on the pronotum, 

 where it is dense and very strong, giving a dull lustre; abdomen minutely, 

 feebly, transversely strigilate; punctures fine, asperulate, close on the elytra; 

 color pale testaceous, the head dark piceous, the prothorax paler piceous 

 and the abdomen with a large blackish cloud posteriorly; head small, the 

 eyes at nearly their own length from the base, the carinae fine, not quite 

 entire; antennae pale brown, gradually testaceous basally, moderately short, 

 thick, gradually incrassate, the outer joints moderately transverse, the last 

 gradually pointed and fully as long as the two preceding, the second and 

 third elongate, the latter very slightly the longer; prothorax large, convex, 

 transverse, as wide as the elytra and very much wider than the head, parallel, 

 well rounded at the sides, impressed along the median line, except toward 

 apex, and with a very feeble oblique impression basally at each side of the 

 middle; elytra transverse, only slightly longer than the prothorax; abdomen 

 slightly narrower than the elytra, long, parallel, narrowing very slightly 

 apically, the fifth tergite slightly longer than the fourth, the sixth (cf ) broadly 

 arcuato-truncate, the crenelures rather small and only moderately strong; 

 mesosternal process moderate, separated from the broad but angulate meta- 

 sternum by a rather long and very deep interval; hind tarsi very slender, 

 the joints elongate, the first a little shorter than the second. Length 2.5 

 mm.; width 0.52 mm. New York (Catskill Mts.). 



Well distinguished from either of the two following species by 

 its very strongly micro-reticulate pronotum and antennal characters. 



