122 MEMOIRS ON THE COLEOPTERA 



each longer than one to three, which have the usual basal impression of 

 Atheta; middle coxae subcontiguous, the metasternum behind them 

 transverse, with a small and feeble, broadly angulate wave-like median 

 projection. Length 1.8 mm.; width 0.62 mm. California (Siskiyou 

 Co.). 



This is a decidedly distinct species in its stouter form of the 

 hind body or relatively smaller anterior parts, and in its consequently 

 different general habitus. 



Atheta (Nemota) marcescens n. sp. Slender, rather depressed and 

 moderately shining, the micro-reticulation everywhere large, strong and 

 polygonal, the punctures fine, not dense but, on the elytra, rather close 

 and much rougher than anteriorly; color piceous-black, the head and 

 abdomen deep black, the legs unusually short, piceous; pubescence very 

 short, plumbeous; head large, nearly five-sixths as wide as the prothorax, 

 fully as long as wide, evidently inflated and with broadly rounding sides 

 basally, the eyes small, at fully one-half more than their own length 

 from the base, the carinse obsolete except basally; antennae piceous, 

 scarcely paler basally, short, slender, gradually and feebly incrassate, 

 the third joint as long as the second, both long, the fourth as long as wide, 

 fifth distinctly transverse and shorter than six to ten, the latter only 

 very moderately transverse, the last as long as the two preceding; pro- 

 thorax small, two-fifths wider than long, parallel, the sides slightly ar- 

 cuate, straighter basally, the basal angles very obtuse but evident, the 

 surface not clearly impressed; elytra subquadrate, about a fifth wider, 

 the suture two-fifths longer, than the prothorax; abdomen slender, dis- 

 tinctly narrower than the elytra, parallel, the sides straight, the fifth 

 tergite a third longer than the fourth; metasternum transverse and very 

 feebly arcuate medially behind the narrowly separated coxae. Length 

 1.7-2.0 mm.; width 0.33-0.38 mm. Colorado (Boulder Co.). 



Distinguished by its flatter surface and far eastern habitat, all 

 the other species being Californian; it seems however to be truly 

 a member of the subgenus. 



Subgenus Hilara Rey. 



It is evident that there are many species of this subgenus in- 

 habiting the Atlantic regions of America; they are generally very 

 clearly differentiated among themselves by striking cephalic struc- 

 ture. The following is an additional species: 



Atheta (Hilara) fontis n. sp. Slender, parallel, rather convex, shining, 

 the head black; prothorax, two basal segments and the apex of the ab- 

 domen pale testaceous, the elytra piceous-black, the legs pale; punctures 

 fine, not close, sparse on the abdomen, the pubescence somewhat long, 

 fine, moderately pale; head rather small, as long as wide, fully three- 

 fourths as wide as the prothorax, parallel, the eyes small, at nearly twice 



