Casey — Observations on the Staphylinidae. 13*^ 



width of the tip of the process before the latter, beiog about three times- 

 tbat of the cozal grooves & 



6 — Form stouter than in sternalis, with the abdomen more strongly nar- 

 rowed from base to apex, the coloration throughout nearly similar, thf* 

 pronotum sometimes faintly paler toward the sides, the punctnalioo 

 similar, except that the abdomen is fully as coarsely, though rather less 

 sparsely, punctate; head somewhat larger, nearly half as wide as the- 

 prothorax, which is relatively larger than in sternalis but similar in form^ 

 antennae similarly short but rather stouter; elytra finely, closely, sub- 

 asperately and very distinctly punctured nearly as in sternalis through- 

 out. Male wi.h the teeth of the sixth tergite about twelve in number,, 

 short, stout and triangular, those at the sides not appreciably smaller 

 than the otaers; first joint of the hind tarsi as long as the next three 

 together and distinctly longer than in the preceding species. Lengtb. 

 3.8-6.0 mm.; with 1.2-1.9 mm. New York (Long Island), Indiana, Vir- 

 ginia (Norfolk) and Louisiana lostrica Say 



Form slender, small in size, shining, dark rufo-testaceous, the head slightly 

 darker, the elytra feebly shaded at the sides and toward the scutellum, 

 the abdomen blackish, rufous at the apical margins of all the segments ;- 

 legs pale, the antennae blackish, pale toward base as usual; puncture» 

 rather smaller, feebler and less close-set than in the two preceding 

 species; head about half as wide as the prothorax, the antennae about 

 as long as the head and prothorax combined, very stout, the joints about 

 the sixth twice as wide as long and somewhat wider than the apical;, 

 prothorax short, fully three-fourths wider than long, rather less nar- 

 rowed anteriorly than in lustrica, the sides and base broadly rounded^ 

 the basal angles somewhat evident though very obtuse and broadly 

 rounded ; elytra not quite twice as wide as long, the sides as long as the- 

 protborax, the suture nearly four-fifths as long; abdomen as inlustricay 

 the punctures very coarse; hind tarsi about as long as the tibiae, the 

 basal joint not quite as long as the next three combined. Male witk 

 the teeth relatively somewhat larger than in the two preceding species- 

 and only about eight in number, the one at each side usually being rudi- 

 mentary. Length 3.7 mm.; width 1.1 mm. Ohio (Cincinnati). 



algonqnina n. sp^ 



7 — Body less stout than usual, shining, flavo-testaceous, the head, median- 

 parts of the pronotum and scutellar region of the elytra pale piceonsf 

 abdomen blackish, the apices of the segments pale; antennae dusky 

 paler toward base ; punctures coarter but feeble and very sparse on the 

 head, smaller and less sparse on the pronotum, stronger, dense and^ 

 asperate on the elytra, the abdominal punctures coarse and very sparse;, 

 head fully half as wide as the prothorax, the eyes large, the antennae of 

 the usual type though less stout, as long as the head and prothorax, the- 

 outer joints subequal in width, obtrapeioidal and distinctly less than 

 twice as wide as long; prothorax three-fourths wider than long, only 

 moderately narrowed anteriorly, broadly rounded at the sides andt 

 base, the basal angles broadly arcuate; two approximate anterior punc- 

 tures placed transversely unusually distinct ; elytra less than twice as wide 

 as long, the sides about as long as the prothorax, the suture nearly four- 

 fifths as long; bind tarsi distinctly shorter than the tibiae, the basal 



