Casey — Observations on the Staphylinidae. 395 



well roanded, the sides but feebly converging and sUgbtiy arcaate 

 throaghoat; dorsal and sablateral .«eries almost even, composed of very 

 small and widely spaced punctures, the former about ten, the latter 

 about five in number; there are also some rather close- set punctures 

 along ihe antero lateral margin; elytra slightly elongate, somewhat 

 longer and but little wider than the protaorax, the puuclures very 

 small, rather sparse, arranged as in hamatus, the outer of the two 

 medial series less distinct; abdomen but little narrower than the elytra, 

 convex, finely but very distinctly and only moderately sparsely punctu- 

 late, still more distinctly beneath. Length 6.7-7.3 mm.; width 1.1 mm 

 Iowa (Iowa City), — H. F. Wickham vemicatas n. sp. 



Body nearly similar to the preceding but much smaller, with less developed 

 bead and less minute punctuation, the coloration and lustre similar 

 throushout, the prothorax rather less intensely black, the antennae 

 similar in color and structure; head rather small, similar to that of 

 vemicatus, the punctures a little larger and somewhat less remotely 

 separated but still very sparse, very minute on the flunks and under 

 surface and rather sparser; prothorax slightly elongate, distinctly 

 wider than the head, similar to that of vernicatus but narrower and 

 more elongate and with the dorsal and sublateral series much less 

 regular, with the punctures stronger and more close-set, with nume- 

 rous outlying punctures anteriorly and more scattered toward the 

 anterior angles; elytra but little longer than wide, somewhat shorter 

 than the prothorax and only just visibly wider, the punctures sparse but 

 stronger than in the preceding, more narrowly aggregated along the 

 suture and usually arranged in three series along the middle; abdomen 

 •Imost similar. Length 6.0-5.8 mm.; width 0.8-0.85 mm, Ohio (Cin- 

 cinnati), — Chas. Dury micans n. sp. 



8 — Form slender, black, the antennae, legs and elytra dark red, the abdo- 

 men dark piceous, with the tip ruf o-piceous ; head convex, elongate, 

 snbovdl, rounded behind, very sparsely punctured at the sides, the 

 punctures coarse; oblique ocular grooves short; under surface with a 

 lew scattered coarse pnnctures, nearly smooth behind; prothorax 

 elongate -oblong, with much rounded angles; dorsal series of 9-10 

 strongly marked punctures, the sublateral series curved, well defined, 

 of 9-10 punctures; between the two and near the front margin there is 

 a group of four punctures, also some near the front angles; elytra dis- 

 tinctly and sparsely but not deeply punctured almost in rows, Length 

 7.5 mm. Michigan (Detroit) gnlarii Lee. 



Group rv. 



Closely resembles " XanthoUnus liamatua ," differing by the shorter frontal 

 grooven, by the gular sutures being effaced and the under surface of the 

 heal smooth between the punctures, instead of finely strigose; there 

 are also some large punctures between the dorsal and sublateral series 

 of the prothorxx, which cause the latter series to appear irresular; the 

 elytra are more strongly punctured and the pnnctures are not arranged 

 in series; the body is testaceous-brown in color, with the head darker 



