4O MEMOIRS ON THE COLEOPTERA. 



length from the base, the carinae distinct, entire; antennae blackish, paler 

 basally, rather short, rapidly and somewhat strongly incrassate, the outer 

 joints distinctly transverse, almost parallel-sided, the last as long as the two 

 preceding, the second and third much elongated, equal; prothorax rather 

 large and transverse, parallel, the sides only feebly arcuate, the apical and 

 basal angles evident but blunt, evidently though not very greatly wider 

 than the head and correspondingly slightly narrower than the elytra, the 

 basal impression rather large, transversely oval; elytra relatively moderate 

 in size, transverse, the suture slightly longer than the prothorax; abdomen 

 nearly as wide as the elytra, parallel, with slightly arcuate sides, extremely 

 finely and closely but feebly and transversely strigilate, the fifth tergite 

 shorter than the fourth, the sixth (9) broadly, feebly arcuate apically; 

 mesosternal process extending nearly to apical fourth of the coxae, gradually 

 narrowing to the acutely rounded but appreciably broad and not at all acic- 

 ulate apex, which is rather distant from the short and broadly obtuse meta- 

 sternum; hind tarsi rather long, the basal joint much shorter than the second, 

 two to four gradually and slightly decreasing. Length 3.0 mm.; width 0.8 

 mm. Oregon (Lane Co.). 



The large size, oblong, subparallel form, antennal and sternal 

 characters are distinctive. 



Atheta nupera n. sp. Nearly parallel, but slightly convex, slightly shining, 

 black, the elytra castaneous, the legs pale; punctures very fine, rather close, 

 asperulate; vestiture only moderate in length but rather coarse; head mod- 

 erate, the eyes convex, at nearly their own length from the base, the carinae 

 extremely fine, feeble and far from entire; antennae pale brown throughout, 

 well developed, gradually and moderately incrassate, the outer joints slightly 

 wider than long, the last not as long as the two preceding, the second and 

 third moderately elongate, the former the longer; prothorax moderately 

 transverse, distinctly wider than the head and slightly narrower than the 

 elytra, widest at apical third, the sides rounded, straighter basally; surface not 

 definitely impressed; elytra parallel, rather transverse, the suture distinctly 

 longer than the prothorax; abdomen narrower than the elytra, parallel, 

 with the sides straight, shining, the fifth tergite slightly longer than the fourth, 

 the sixth (9) very broadly and feebly arcuate at apex; mesosternal process 

 extending beyond the middle of the coxae, drawn out and extremely finely 

 aciculate at the apex, which is far distant from the transversely arcuate 

 metasternum; hind tarsi short. Length 2.65 mm.; width 0.62 mm. New 

 York (Willets Point, Long Island). 



This species is not a perfectly typical Atheta, but to isolate it by 

 subgeneric name would not be advisable at present. 



Atheta reticula n. sp. Stout, moderately convex, only slightly shining, 

 finely, the abdomen more coarsely, micro-reticulate, finely, moderately 

 closely and asperulately punctate, the punctures of the abdomen fine and 

 sparse but also asperulate; color dark rufo-piceous, the abdomen more 

 blackish, the elytra but slightly paler, the legs piceous; vestiture rather 

 coarse but not long; head moderate, the eyes convex, prominent, setose as 



