STAPHYLINID.E. 115 



so common among the smaller groups of Atheta. In the first species 

 or type, described below, the mesosternum extends but little behind 

 the middle of the coxae, which are moderately separated, its apex 

 somewhat notably broad and circularly rounded, not very free, and 

 separated from the narrowly rounded tip of the rather narrowly 

 prolonged metasternum, by a moderate interval, which is unde- 

 pressed and somewhat broadly convex; the hind tarsi are rather 

 long and slender, with the first four joints equal. 



Pseudota dissensa n. sp. Stout, moderately convex, feebly shining, finely 

 and rather closely, asperulately punctate, moderately closely so on the 

 abdomen, where the reticulation is somewhat transverse in arrangement; 

 pubescence distinct; color dark piceous, the elytra rather pale brownish - 

 flavate, feebly infumate suturally toward base and postero-externally, the 

 abdomen rufo-piceous, indefinitely black subposteriorly, the legs pale; head 

 but little wider than long, rounded at the sides, the eyes moderately large, 

 the carinse subentire; antennae not very short, slender basally but thence 

 rapidly very strongly incrassate, the second joint much shorter than the first 

 and slightly longer than the more obconic third, four to nine short, very 

 strongly transverse, rapidly increasing in size, the tenth much longer than 

 the ninth, less transverse, the last pointed from behind the middle to the tip 

 and as long as the three preceding; prothorax moderately transverse, dis- 

 tinctly wider than the head and but little narrower than the elytra, parallel, 

 with feebly arcuate sides, which are more rounded at apex, the basal impression 

 very small, transverse and obsolescent; elytra large, moderately transverse, 

 subparallel, the apices very feebly and broadly sinuato-truncate laterally, 

 the suture about one-half longer than the prothorax; abdomen at base nearly 

 as wide as the elytra, the sides thence very feebly arcuate and converging 

 posteriorly, the first five tergites short, equal, the sixth (d") transversely 

 truncate and simply crenate. Length 1.8 mm.; width 0.56 mm. Pennsyl- 

 vania (Philadelphia). 



Readily identifiable by the rather stout form, very incrassate 

 antennae, with large terminal joints, long tarsi and other characters. 

 The antennae do not fit Dimetrota at all well, for otherwise it might 

 be regarded as an aberrant member of that genus. 



Pseudota miscella n. sp. Rather stout and shining, very finely punctate, 

 closely on the elytra, rather closely on the abdomen though sparsely at apex; 

 coloration nearly as in the preceding, the elytra not evidently infumate, 

 the legs very pale; head rather transverse, the eyes well developed, at less 

 than their own length from the base, the tempora less prominent and arcuate, 

 the carinae fine, far from entire; antenna? black, the first joint not quite as 

 long as the next two, the second but little longer than the third, both short 

 and about one-half longer than wide, the joints thence increasing rapidly, very 

 stout distally though only moderately transverse, the tenth not longer than 

 the ninth, the last as long as the preceding two; prothorax well developed, 



