428 MEMOIRS ON THE COLEOPTERA 



black, the anterior tarsi broadly dilated in both sexes and slightly 

 rufescent; head but little broadened basally, the eyes at scarcely their 

 own length from the base; surface with large but shallow, very close-set, 

 umbilicate punctures; mandibles with the external groove coarse and 

 deep; antennae thick, filiform, a third longer than the head; prothorax 

 distinctly wider than the head, parallel, circularly rounded at base, 

 truncate at apex, the punctures similar to those of the head but about 

 half as large, extremely close-set but very distinct, with mere vestiges 

 of a fine median impunctate line; scutellum with rather short coarse 

 pubescence, not velvety; elytra slightly shorter than wide, not quite as 

 long as the prothorax and slightly wider, rather finely but strongly, 

 densely punctate, the pubescence short and fusco-fulvous, like that of 

 the rest of the anterior parts; abdomen obscure rufous at tip, rather 

 finely, closely punctate and with longer and coarser hairs, the punctures 

 sparse apically, the intermingled coarser foveae evident apically; median 

 velvety spots apparently completely obsolete; sixth ventral (cf) with 

 a small and rather deep apical sinus, twice as wide as deep, the 

 adjacent surface cylindrically impressed almost to the base. Length 

 (cf 9 ) 12.0-12.5 rnm.; width 2.6-2.8 mm. North Carolina (Southern 

 Pines), Manee. Two examples. 



Differs very much from tomentosus in lacking the medial tomen- 

 tose spots of the abdomen, in the more distinct punctuation of the 

 anterior parts, non-velvety scutellum and in the much smaller and 

 deeper apical sinus of the sixth ventral in the male, besides the 

 smaller size of the body. The female is the smaller and narrower 

 of the two specimens at hand. 



Staphylinus fluviaticus n. sp. Form nearly as in tomentosus but larger 

 in size, black throughout, the rather dense pubescence rusty in tint, rather 

 long and conspicuous on the legs, the rather broadly dilated anterior 

 tarsi piceous; head barely longer than wide, scarcely dilated basally, 

 the tempora long, feebly arcuate and nearly three-fourths longer than 

 the eyes; punctures moderate in size, deep, very distinctly defined though 

 extremely close-set; antennae nearly a third longer than the head, thick, 

 somewhat attenuate apically; prothorax only just visibly wider than the 

 head, in form as in the preceding, the strong and very close-set punctures 

 like those of the head but about half the size, more distinctly defined than 

 in tomentosus, with a narrow impunctate line only toward base; scutellum 

 velvety-black as in that species; elytra shorter than wide, not quite as 

 long as the prothorax but distinctly wider, rather finely but strongly, 

 densely punctate; abdomen finely, not densely punctate, having through- 

 out a mixture of longer blackish and very short fulvous hairs and with 

 two blackish velvety spots, separated by fulvous vestiture, at the seg- 

 mental bases medially; under surface with moderate and rather well 

 separated punctures. Length (9) 16.7 mm.; width 4.0 mm. Missouri 

 (St. Louis). 



This species may be distinguished at once from tomentosus, as 



