STAPHYLINID.E 43 x 



Related to hepaticus but differing in color, in the much more 

 abbreviated prothorax, shorter elytra and very much sparser 

 abdominal punctures. 



Philonthus laxellus n. sp. Form stouter than in the preceding, shining, 

 the pronotum blackish-piceous, the elytra but slightly paler; head and 

 abdomen black, the legs piceo-rufous; antennae blackish throughout, the 

 base of the second joint pale, longer than the head and prothorax, slender 

 basally, gradually incrassate distally, the outer joints as long as wide; 

 head narrow, longer than wide, the eyes at one-half more than their length 

 from the base, the tempora distinctly converging and nearly straight 

 behind them, becoming arcuate basally; prothorax as wide as long, in 

 outline nearly as in ivacoensis, distinctly wider than the head ; elytra much 

 shorter than wide, scarcely as long as the prothorax, at base slightly, at 

 apex much, wider than the latter, the punctures small but strong, sub- 

 asperate and close-set; abdomen broad, as wide as the elytra, parallel, 

 narrowing only at apex, the punctures fine, sparse, becoming less sparse 

 basally; sixth ventral (d 71 ) with a small triangular sinus at tip, about twice 

 as wide as deep, the adjacent surface not impressed distinctly; tarsi 

 slender, the anterior only feebly though evidently dilated in the male. 

 Length (d") 4.2 mm.; width 0.92 mm. New Mexico (Cloudcroft), 

 Knaus. 



This species differs distinctly from wacoensis, inquietus or hepaticus 

 in its broad parallel abdomen, basally converging sides of the head, 

 longer and more incrassate antennae and many other characters. 



Philonthus pumilio n. sp. Very small, rather narrow and subparallel, 

 shining, dark red-brown in color, the legs slightly paler, the head and 

 abdomen black; head longer than wide, much narrower than the pro- 

 thorax, the eyes at over one-half more than their own length from the 

 base, the sides behind them slightly converging and nearly straight, 

 becoming gradually arcuate posteriorly; antennae long, extending to the 

 middle of the elytra, infuscate, the basal joint piceo-rufous, very gradu- 

 ally and slightly thickened distally, the outer joints longer than wide; pro- 

 thorax relatively large, longer than wide; sides gradually converging and 

 slightly arcuate from the rounded base to the apex, the three punctures 

 very widely separated, moderate; scutellum moderate, asperately punc- 

 tate as usual; elytra shorter than wide, much shorter than the prothorax, 

 at base as wide, at apex a little wider, than the latter; punctures moderate, 

 strongly asperate and rather dense; abdomen broad, parallel, slightly 

 narrowed only at apex, finely punctate, rather closely basally, sparsely 

 apically; sixth ventral (cf) with a small angulate sinus about three times 

 as wide as deep, the adjacent surface angularly and strongly impressed; 

 anterior tarsi moderately dilated. Length (cf) 3.25-3.5 mm.; width 0.76 

 mm. Manitoba (Aweme), Criddle. 



Not closely related to any other species and one of the smallest 

 true Philonthi known to me. The female is not at hand, but 

 probably does not differ in any marked manner. Two examples. 



