Casey — Observations on the Staphylinidae. 221 



but is composed of very much more minute species, having 

 strong and rather close-set punctures on the head and prono- 

 tum and the hind angles of the prothorax somewhat broadly 

 rounded, differing in this way from any Uidiusa, Gnypetella 

 or Gnypeta, excepting the subgenus Giiypetoma, which is real- 

 ly entitled to full generic rank in all probability. It more 

 closely resembles the genus Keolara Shp., where the sculpture 

 is in general similar, the basal angles of the prothorax very 

 obtuse and blunt, but not so distinctly rounded and the inter- 

 mesocoxal parts similar, but it differs wholly from JSTeolara 

 in the structure of the prosternum before the coxae as stated 

 in the table. The head is nearly as in Gnypetella ^ broadly 

 arcuato-truncate at base, with distinct rounded angles and 

 the eyes are almost as small as in that genus but much more 

 prominent. The neck is much narrower and the antennae 

 are longer than in any of the allied genera, with all the joints 

 elongate, the first much longer than the second or third, the 

 latter being more or less appreciably longer than the second. 

 The elytra are obliquely truncate at apex rounded but not 

 at all produced at the sides of the apex, in the manner 

 observed in Tachyusa and less evidently in Gnypeta. The 

 abdomen is wide, parallel and almost evenly arcuate at the 

 sides, with the first three tergites narrowly, rectilinearlv and 

 more or less feebly impressed at base, the impressions im- 

 punctate. The short and broadly truncate mesosternal pro- 

 cess is not at all free as it is in Gnypela, Tachyusa or Eiili- 

 usa, but is attached by a declining isthmus to the somewhat 

 depressed apex of the long metasternal projection, the structure 

 being almost similar to that of Keolara. The legs are long 

 and very slender, the hind tarsi very slender and filiform, 

 about as long as the tibiae, with the basal joint a little 

 longer than the next two combined. We have only the fol- 

 lowing three species so far as noted : — 



Elytra subparallel, louger than the prothorax ,2 



Elytra with the sides strongly diverging from base to apex, shorter than the 



prothorax 3 



2 — Form stout, subparallel, convex, shining, the head, and, to a less degree 

 the elytra and the last two or three abdominal segments, piceous to 

 blackish, the prothorax, basal parts of the abdomen, elytral base, 



