SxAPHYLINIDyE. 47 



the depressed intermediate ridge rather convex; hind tarsi somewhat elon- 

 gate, with the first four joints subequal. Length 1.8 mm.; width 0.45 mm. 

 New York (Ithaca). 



Readily distinguishable by the form of the head and antennal 

 characters. 



Atheta (Traumoecia) orbiceps n. sp. A little larger than the preceding, still 

 more blackish throughout, the elytra very dark piceous-brown, the legs pale, 

 the antennae as in ithacana dark piceous, paler basally; pubescence a little 

 longer; head slightly smaller, more orbicular, but slightly wider than long, the 

 tempora behind the rather large eyes converging and more rounded to the 

 base; carinae similar, the antennae nearly similar, the outer joints only very 

 moderately transverse, the last not quite as long as the two preceding; pro- 

 thorax transverse, nearly as in ithacana but relatively somewhat larger, much 

 wider than the head, not impressed along the median line; elytra similarly 

 slightly wider and much longer than the prothorax, scarcely more distinctly 

 wider than long and subparallel ; abdomen longer, more parallel, not narrowed 

 apically, the sides nearly straight, the fifth tergite much longer than the 

 fourth, the sixth as in the preceding but broader; sterna as in ithacana, the 

 obtusely angulate metasternal projection somewhat blunter, the tarsi similar. 

 Length 2.1 mm.; width 0.45 mm. Iowa (Cedar Rapids), Brendel. 



Closely allied to the preceding but differing in the form and size 

 of the head, smaller terminal joint of the antennae, more parallel 

 abdomen and other features. 



Atheta (Traumoecia) subdola n. sp. General form, coloration and sculpture 

 as in the preceding but more slender and with a notably smaller prothorax, 

 rather more shining; head and antennae similar; prothorax moderately trans- 

 verse, parallel but more strongly rounded at the sides, very moderately wider 

 than the head though much narrower than the elytra, very obsoletely im- 

 pressed along the median line; elytra but little wider than long, very much 

 longer than the prothorax; abdomen as in orbiceps; sterna similar, the meso- 

 sternal process not quite so finely pointed and the metasternal projection 

 rather more sharply angulate; hind tarsi similarly slender, with the first 

 four joints equal. Length 2.0 mm.; width 0.42 mm. Wisconsin (Bay- 

 field), Wickham. 



In general organization the three preceding species agree very 

 well, and they form a perfectly natural group, whether or not 

 actually the same as the European Traumcecia, as represented by a 

 specimen before me named T. ravilla Er. 



The following species is aberrant in its more strongly asperate 

 sculpture : 



Atheta (Traumcecia) asperiola n. sp. Subparallel, very moderately convex, 

 scarcely shining, distinctly micro-reticulate, the punctures fine and close, 

 strongly asperulate, the vestiture short; dark piceous, the head and abdomen 



