STAPHYLINID.E 4 T 9 



as wide, the eyes similar, at half their length from the constriction; 

 antennae nearly similar; prothorax almost as in orbiceps but much 

 more conspicuously wider than the head, the sides rather more 

 arcuate and continuing somewhat arcuate to the apex; elytra much 

 shorter than wide, subparallel, exactly equal in width to the prothorax 

 and distinctly shorter; punctures rather smaller and still closer than 

 in orbiceps but asperulate and almost as conspicuous; abdomen with 

 even surface, blackish, not iridescent, the segmental apices paler, 

 the punctures fine, close and even throughout; tarsi nearly as in orbi- 

 ceps; body narrower and more slender than in that species, the sixth 

 ventral (of) with the apical sinus much larger and deeper, fully half 

 as wide as the segment, more narrowly rounded at the bottom and 

 scarcely three times as wide as deep, the adjacent surface not 

 definitely modified. Length (cf) 5.4 mm.; width 0.98 mm. A 

 single example, without definite record of locality but probably 

 from the northwest; I have no record of any kind concerning it. 



solitarius n. sp. 



7 Body slender, subparallel, shining and piceous-black, the prothorax 

 sometimes ?lightly paler, the elytra slightly rufescent; head slightly 

 wider than long, the eyes very large and convex, their inner margins 

 subparallel and not distinctly converging as they are in the prostans 

 type; antennae slender and feebly incrassate, pale flavate in color; 

 prothorax distinctly wider than the head, subquadrate, fully as long 

 as wide if not somewhat longer, the sides broadly arcuate; base 

 rounded; posterior puncture of the triplex series at the middle of the 

 length; elytra as long as the prothorax to a little shorter and exactly 

 equal to the latter in width, subparallel, not as long as wide, the 

 punctures fine and very close-set, the pubescence rather dense; 

 abdomen only feebly tapering apically, finely, very closely punctate 

 and pubescent, the surface even; sixth ventral (cf ) with a moderate 

 and rather shallow apical sinus, the adjoining surface feebly im- 

 pressed. Length (cf) 4.8-5.25 mm.; width 0.85-0.95 mm. Maine 

 to Lake Superior. Occurs also in Europe. [Quedius hyperboreus, 

 Er.] fulvicollis Steph. 



Body much stouter, more fusiform, rather convex, deep black, the elytra 

 scarcely picescent; legs and antennae piceo-rufous; head and antennae 

 as in the preceding; prothorax fully as wide as long, much wider than 

 the head, rather more swollen basally than in the preceding, the sides 

 and base rounded; posterior puncture of the series distinctly before 

 the middle of the length; elytra much larger than in fulvicollis, dis- 

 tinctly longer than the prothorax and, apically, evidently wider than 

 the latter, as long as wide, the punctures extremely minute and dense, 

 the pubescence dense and dark, producing an opaculate appearance; 

 scutellum with rather dense fine punctures throughout, except at 

 base; abdomen broad, tapering apically, opaculate because of the 

 very fine and extremely dense punctures and dense fuscous vestiture; 

 tarsi rather short, slender, the anterior feebly dilated in the female. 

 Length (9) 5-4 mm.; width 1.2 mm. Washington State (Soda 

 Springs) pugetanus n. sp. 



