STAPHYLINID,*:. 57 



narrower than the elytra, parallel but with the border narrowing gradually 

 behind, the fifth tergite longer than the fourth; sixth ventral plate in the 

 type prolonged behind, broad, circularly rounded at apex. Length 2.0 mm.; 

 width 0.6 mm. California (Siskiyou Co.). 



Recognizable by the deep black color of every part of the body 

 and legs, the large subquadrate elytra and other characters as 

 mentioned above. 



Atheta (Nemota) filiola n. sp. Similar in coloration, form and lustre, ex- 

 cept that the body is not so stout and the legs not deep black, but blackish- 

 piceous, the vestiture rather shorter and finer; head similar but relatively 

 larger and except that the eyes are rather less prominent and at not at all 

 more than their own length from the base, the tempora barely at all swollen; 

 antennae slender basally but more distinctly and rapidly and evidently more 

 strongly incrassate distally, the outer joints more transverse, the last a little 

 smaller, the third evidently shorter than the second ; prothorax nearly similar, 

 convex, less evidently wider than the head and not quite so greatly narrower 

 than the elytra, the sides more parallel and more rounded; elytra narrower 

 and more nearly as long as wide, very much longer than the prothorax; 

 abdomen distinctly narrower than the elytra, nearly similar, the hairs shorter, 

 finer and more numerous, the tergites all a little shorter but similarly pro- 

 portioned. Length 1.75 mm.; width 0.48 mm. California (San Bernardino 

 Mts.), Fall. 



As stated in the description, this species, though allied rather 

 closely to paganella, may be distinguished by its narrower form, 

 shorter vestiture, more incrassate antennae and other features. 



Atheta (Nemota) timida n. sp. Form, coloration, lustre and sculpture 

 nearly as in filiola, the legs blackish-piceous; head nearly similar, parallel, 

 the eyes rather convex, smaller, at much more than their own length from 

 the base, the antenna? slender basally, gradually rather strongly incrassate 

 distally, the outer joints slightly transverse, the ninth shorter than the tenth, 

 the last rapidly pointed, as long as the two preceding, the second and third 

 obconic, the latter the shorter; prothorax rather short and transverse, dis- 

 tinctly wider than the head and correspondingly narrower than the elytra, 

 nearly parallel, with the sides subevenly and moderately arcuate, the basal 

 impression distinct; elytra evidently shorter than wide, very much longer 

 than the prothorax, not quite parallel; abdomen distinctly narrower than 

 the elytra, parallel, the punctures fine, sparse, the hairs rather coarse; fifth 

 tergite much longer than the fourth, the sixth ventral plate in the apparently 

 male type produced behind, with the apex broadly and arcuately subtruncate. 

 Length 1.8 mm.; width 0.48 mm. California (Sta. Cruz Mts.). 



The sixth ventral of the male is more subtruncate at tip than in 

 the broader and heavier paganella, and from filiola, it may be known 

 by its longer antennae, more prominent eyes and shorter and more 

 transverse prothorax and elytra. 



