Casey — Observations on the Staphylinidae. 241 



joint almost as long as the entire remainder. Length 3.2 mm. ; width 

 0.66 mm. Arizona (Pinal Mts.) , — H, F. Wickham ...... pinalica n. sp. 



4 — Form moderately stout, convex, polished, pale rufo-piceous through- 

 out, the abdomen slightly clouded apically, the antennae fuscous except 

 basally, the legs pale; pubescence inconspicuous; integuments not at all 

 micro-reticulate at any part; head large, slightly transverse, broadly, 

 evenly arcuate at base, the sides parallel, the angles broadly rounded; 

 eyes small, slightly prominent, the surface minutely, sparsely punctu- 

 late, broadly impunctate toward the middle, where the surface is evenly 

 convex in the male or feebly, broadly impressed along the middle in 

 the female; antennae very long, moderately slender, fully attaining the 

 apex of the elytra, only very slightly incrassate distally, the third joint 

 longer than the second, the subapical rather longer than wide; prothorax 

 elongate, distinctly narrower than the head, especially in the male, the 

 sides broadly, angularly prominent at apical two-fifths, rounded thence 

 to the neck and strongly converging and very feebly sinuate to the 

 base, the sulcus deep, the surface minutely, sparsely punctulate, 

 asperately and less sparsely so very near the sulcus throughout but 

 particularly toward base ; scutellum acutely granose ; elytra four-fifths 

 wider but only very slightly longer than the prothorax, minutely, 

 sparsely punctulate throughout, the humeri widely and obliquely ex- 

 posed at base, the impression behind the scutellum large and deep; 

 abdomen parallel with evenly arcuate sides, at the middle as wide as 

 the elytra in the male, narrower in the female, very finely, moderately 

 closely punctulate, the punctures asperate and coarser on the first seg- 

 ment, finer on the second and third and still finer posteriorly, the first 

 impression broad, arcuate, coarsely and closely but not polygonally 

 punctured, the second and third narrower and straighter, each with a 

 single series of coarse and well spaced punctures in median half; legs 

 long, the basal joint of the hind tarsi longer than the next three com- 

 bined. Length 3.2-3.6 mm.; width 0.7 mm. Arizona. ... arizonica n. sp. 



Form nearly similar, convex, polished, the integuments devoid of micro- 

 reticulation throughout, dark piceo-castaneous throughout, the head 

 blackish, the antennae sometimes slightly infumate except at base; 

 pubescence inconspicuous; head moderate, nearly as long as wide, sub- 

 parallel, the basal angles very broadly rounded and obliterated, the 

 punctures very minute and sparse, slightly larger and asperulate on 

 the occiput, the vertex not impressed in the types; antennae much 

 shorter than in the preceding, thicker and much more incrassate dis- 

 tally, extending to about the middle of the elytra, the second and third 

 joints equal, the subapical obviously wider than long; prothorax elon- 

 gate, nearly as in arizoniea throughout, except that the fine punctula- 

 tion is only very obsoletely asperate near the sulcus, distinctly narrower 

 than the head; scutellum similar; elytra also similar except that the 

 minute punctulation is more close-set and still closer, coarser and 

 decidedly asperate very near the suture behind the scutellum, the im- 

 pression much feebler and more diffuse; abdomen parallel, the sides 

 strongly, evenly arcuate, at the middle but little narrower than the 

 elytra, the surface finely, very closely punctulate throughout, some- 

 what less finely toward base, the first impression large, arcuate, 



