STAPHYLINID/E 409 



4 Eyes nearly as in peregrinus, scarcely at all prominent, situated at 

 nearly one-half more than their own length from the constriction. 

 Body moderately slender, rufo-fuscous, the head and elytra black or 

 blackish, shining; head oblong-oval, about as long as wide, the sides 

 behind the eyes subevenly and distinctly arcuate to the rather deep 

 constriction, otherwise somewhat as in peregrinus; antennae not 

 quite as long as the head and prothorax, only moderately incrassate, 

 the outer joints nearly as long as wide; prothorax short, a fourth or 

 fifth wider than long, the subparallel sides strongly arcuate, con- 

 tinuous with the strongly rounded base, the triple punctures fine and 

 feeble; elytra nearly as long as wide, much longer than the prothorax, 

 at base slightly narrower, at apex fully as wide as, the latter to 

 wider; punctures fine, not very close-set; abdomen with the fine 

 punctures only a little more close-set than those of the elytra, rather 

 well separated; sixth ventral (d*) with the apical sinus about a third 

 of its width, subcircularly rounded, the adjoining surface shallowly 

 impressed; hind tarsi slender, not quite as long as the tibiae. Length 

 (cf 9) 7.3-7.6 mm.; width 1.35 mm. California (Siskiyou Co. and 

 Lake Tahoe) rutilans n. sp. 



Eyes evidently prominent and convex, always very moderate in size. .5 



5 Head with the sides behind the eyes strongly converging and evenly, 

 very feebly arcuate to the constriction, which is fine and feeble. 

 Blackish-piceous, very shining, the head deep black, the elytra dark 

 umber-brown, the apex and sutural margin very finely testaceous; 

 legs pale piceous-brown; head rhomboid-oval, fully as long as wide, 

 the eyes notably prominent and at just visibly less than their own 

 length from the constriction; antennae moderate, the outer joints 

 nearly as long as wide, the second shorter than the third, fuscous, 

 the basal joints testaceous; prothorax rather short, a fourth wider 

 than long, the sides and base continuously arcuate, the former 

 slightly converging but arcuate anteriorly; triple punctures very 

 moderate; elytra as long as wide, distinctly longer than the prothorax, 

 at base slightly narrower, at apex fully as wide as, the latter; punc- 

 tures moderate in size, sparse and strongly asperate; abdominal 

 punctures finer than those of the elytra and not asperate but equally 

 sparse; sixth ventral (cT 1 ) with the sinus about three times as wide 

 as deep, the adjoining surface briefly and feebly impressed; hind 

 tarsi slender. Length (d 71 ) 5.7 mm.; width 1.15 mm. Canada 

 (Kazubazua, Province of Quebec), Beaulne. . . .canadensis n. sp. 



Head more oblong, with the sides, as a rule, more abruptly converging 

 at base to the moderate to rather deep constriction 6 



6 Head without a puncture near the inner margin of the eyes. Body 

 subparallel, rather stout, moderately convex, polished, piceous-black, 

 the head black, the elytra and apices of the abdominal segments 

 rufous; legs piceous; antennae testaceous, gradually infuscate dis- 

 tally, not quite extending to the thoracic base, moderately incrassate, 

 the outer joints nearly as long as wide, the second shorter than the 

 third; head scarcely as long as wide, the eyes separated from the 

 constriction by just visibly more than their own length; prothorax 

 widest near the base, the sides thence converging and feebly arcuate 



