STAPHYLINID.E 167 



Not closely related to any other species known to me, but may 

 be placed near helence ( = oregona Csy.), in rny previous revision 

 (Tr. Acad. St. Louis, XVI, p. 193). 



Gnypeta brunnescens n. sp. father stout and convex, more parallel 

 than the preceding, moderately shining, brown in color, the head and 

 abdomen slightly darkest, the prothorax palest by a slight amount, the 

 legs a little paler, brown, the elytra with a fine and very pale apical mar- 

 gin; punctures fine and close-set, dense on the elytra and abdomen, the 

 three tergitical impressions somewhat strongly but not confluently punc- 

 tate in single line; pubescence short, close; head wider than long, a little 

 narrower than the prothorax, the eyes large, prominent, at less than 

 their own length from the base, the tempora rounding and converging 

 to the base, continuing the outline of the eyes; antennae long, slender, 

 dusky, gradually though only moderately incrassate distally, the first 

 three joints equal in length, fourth and fifth elongate, the ninth and tenth 

 about as long as wide, the last much shorter than the two preceding; pro- 

 thorax well developed, very convex, slightly wider than long, the sides 

 subprominently rounded near apical fourth, thence only feebly con- 

 vergent and straight to the base, the median line coarsely and deeply 

 impressed in basal half, wholly unimpressed anteriorly, the transverse 

 basal impression wholly wanting; elytra parallel, moderately transverse, 

 one-half wider and a third longer than the prothorax, the humeri well 

 exposed at base; abdomen relatively narrow, very much narrower than 

 the elytra, the sides parallel and nearly straight, just visibly dilated 

 behind the middle. Length 2.6 mm.; width 0.6 mm. New York 

 (near the city). 



This fine species is decidedly isolated in its general form, close 

 sculpture, coloration and other characters but may be placed near 

 nigrella Lee., differing in color, in its denser punctures, larger and 

 less transverse prothorax and other characters. 



Gnypeta boulderensis n. sp. Much less stout, moderately convex, 

 shining, deep black throughout, the legs black; punctures fine, close-set, 

 not quite so dense though a little stronger on the abdomen, where the three 

 tergitical impressions are loosely and more strongly punctate; pubes- 

 cence dusky, not conspicuous; head wider than long, fully as wide as the 

 prothorax, the eyes at nearly one-half more than their own length from 

 the base, the almost equally prominent tempora nearly straight and 

 parallel for a long distance, then rapidly rounding to the base; antennae 

 black, extending only to basal third of the elytra, gradually and but 

 feebly incrassate, the second joint about as long as the first but longer 

 than the third, fourth slightly elongate, the fifth distinctly, the outer 

 joints rather strongly, transverse, the last as long as the two preceding; 

 prothorax slightly though distinctly wider than long, the sides rounded 

 anteriorly, thence distinctly converging and straight to the base, the 

 median line somewhat broadly, feebly impressed in more than basal 

 half and with a very small but strong transverse ante-scutellar im- 



