STAPHYLINID.E. 53 



Atheta (Micrearota) tincta n. sp. Moderately stout and convex, the colora- 

 tion nearly as in the preceding, shining, the reticulation feeble, the punctures 

 very fine, sparse, notably closer and asperulate on the elytra; head as long 

 as wide, the parallel sides evenly and broadly rounded, the eyes rather small, 

 not prominent and anterior, the carinse wholly obsolete; antennae unusually 

 long, about half as long as the body, moderately stout and only very gradually 

 incrassate, the outer joints evidently wider than long though much less trans- 

 verse than in the other species, the last large, stout, pointed, fully as long 

 as the two preceding, the second and third alike, unusually elongate, 

 the latter but very slightly the shorter; prothorax nearly as in sana but 

 relatively a little smaller and shorter, much wider than the head; elytra 

 short and strongly transverse, the suture only just visibly longer than the 

 prothorax; abdomen rather wide, only a little narrower than the elytra, 

 parallel, with straight sides, the first two tergites as usual, shorter than the 

 next three and paler in color; hind tarsi long and slender, of the usual struc- 

 ture. Length 1.78 mm.; width 0.45 mm. New York. 



This species is an exception in the entire genus in its notably 

 long antennae. In this genus there are no distinct male sexual 

 modifications so far as observable. 



Micratheta n. subgen. 



In this subgenus the body is minute in size and of peculiar parallel 

 convex form, the mesosternal process extending but slightly behind 

 the middle of the coxee, with its apical part subparallel but rather 

 wide, the apex subacutely rounded and rather closely approaching 

 the long and acute metasternal projection, the intervening narrow 

 ridge not or scarcely depressed and the coxae well separated. The 

 tarsi seem to be rather long but the posterior are missing in my 

 only example. The hypomera appear to be fully visible from a 

 lateral viewpoint but are rather more in flexed than in Atheta. 



Atheta (Micratheta) caudex n. sp. Parallel, convex, strongly shining, the 

 reticulation wholly wanting on the head and pronotum but coarse, though 

 not strong, on the elytra and abdomen, becoming transversely wavy on the 

 latter posteriorly, the punctures fine but rather strong, not asperate; color 

 deep black, the elytra piceous, the legs pale; pubescence very inconspicuous; 

 head nearly as long as wide, gradually broadening to the base, the eyes 

 rather small, anterior and not at all prominent, the carinse very fine but al- 

 most entire; antenna? short, gradually and moderately stout and incrassate 

 distally, compact, the outer joints transverse, the last obtuse, not quite as 

 long as the two preceding, the second moderately long, almost as long as 

 the next two combined, the third but little longer than wide; prothorax 

 moderately transverse, large and convex, parallel, the sides very feebly and 

 evenly arcuate from apex to base, distinctly wider than the head and fully 

 as wide as the elytra, unimpressed; elytra short, transverse, the suture 



