STAPHYLINID.E 439 



their own diameters; abdomen gradually narrowing behind the middle, 

 finely, rather sparsely punctulate; sixth ventral (9) circularly rounded, 

 the anterior tarsi slender. Length (9) 5.6 mm.; width 0.83 mm. 

 Canada (Ottawa), W. H. Harrington. 



Probably belongs to that part of the 5-punctate series having the 

 tarsi undilated in the male; the species is remarkably distinct 

 because of the relationships of the prothorax and elytra and also 

 the very coarse punctures of the latter; it may be placed near 

 punctatellus, but is much more slender and with smaller, still more 

 coarsely punctured elytra. 



Philonthus flumineus n. sp. Elongate, somewhat attenuate anteriorly, 

 shining, piceous-black throughout, the head deep black; legs testaceous; 

 antennae blackish, the last joint rufescent, the basal joint testaceous, 

 longer than the head and prothorax, rather incrassate, all the joints 

 longer than wide, the fifth and sixth one-half longer than wide; head oval, 

 elongate, the eyes at one-half more than their length from the base, the 

 tempora feebly converging and nearly straight, rapidly rounding inward 

 basally; prothorax moderate, distinctly wider than the head but barely 

 longer, somewhat longer than wide, strongly rounded at base and on the 

 sides basally, the sides converging and straighter anteriorly; punctures 

 moderate; scutellum hall as long as the suture; elytra very nearly as long 

 as wide, as long as the prothorax, at base distinctly wider than the latter, 

 still wider at apex; subsutural impressed line distinct; punctures rather 

 fine and moderately close-set; abdomen parallel, narrowing only very 

 slightly at apex, finely, rather closely punctate, gradually sparsely pos- 

 teriorly on segments four and five and very sparsely on the sixth, the sixth 

 ventral ( 9 ) circularly rounded at tip, the anterior tarsi slender. Length 

 (9) 6.4mm.; width i.i mm. Missouri (St. Louis). Taken by the writer. 



The long antennae and very gradually diminishing width of the 

 elytra, prothorax and head, will enable one to recognize this species, 

 which may be placed near clunalis, but it is not closely related. 



Philonthus linearis n. sp. Parallel, linear, slender, convex and very 

 compact, polished throughout and black, with the pronotum and elytra 

 blackish-piceous; legs testaceous; antennae thick, somewhat incrassate, 

 rather longer than the head and prothorax, blackish, piceo-testaceous at 

 base, the outer joints rather transverse; head oblong-oval, rather longer 

 than wide, parallel and evenly arcuate at the sides, the basal angles 

 broadly rounded; eyes not at all prominent, at fully twice their length 

 from the base; prothorax oblong-elongate, parallel, just visibly wider 

 than the head, the sides just visibly arcuate, the base rounded; punctures 

 fine; scutellum rather small; elytra very nearly as long as wide, distinctly 

 shorter than the prothorax, at base very slightly wider than the latter and 

 at apex still a little wider, the sides straight; punctures fine and rather 

 widely separated; abdomen finely, sparsely punctulate, polished; sixtli 

 ventral (cf ) with the apex very peculiarly modified; there is a broad thin 



