Casey — Observations on the Staphylinidae. 395 



well rounded, the slides but feebly converging and slightly arcuate 

 throughout ; dorsal and sublateral series almost eveu, composed of very 

 email aod widely spaced punctures, the former about ten, the latter 

 about Ave in number; there are al»o some rather close-aet punctures 

 along ihe anterolateral margin; elytra sligUtly elongate, somewhat 

 long(-r aud but little wider than the protnorax, the puuciures very 

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

 medial series less distinct; abdomen but little narrower than thetlytra, 

 convex, finely but very distinctly aadonly moder;iteiy sparsely punctu- 

 late, still more distinctly beneath. Length 6.7-7.3 mm. ; width 1. mm 

 Iowa (Iowa Citv), — H. F. Wickham Tei'uicatus u. sp. 



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

 head and less minute punctuation, the coloration and lustie similar 

 throuuhout, the proihorux rather less intensely black, the antennae 

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

 vernicatiis, the punctures a little larger and somewhat less remotely 

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

 ■uifdce and rather sparser; prothorax slightly elonj;;ate, distinctly 

 wider than the head, similar to that of vernicaCus 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 

 th m the prothorax and only just visibly wider, the punctures sparse but 

 stronger than in the preceding, more narrowly aggregated along the 

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

 almost similar. Length 5.0-5.8 mm.; width 0.8-0.85 mm. Ohio (Cln- 

 cinuati) , — Chas. Dury m:caii8 n. sp. 



3 — Form aJender, black, the antennae, legs and elytra dark red, the abdo- 

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

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

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

 lew scattered coarse punctures, 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) gnlaris Lee. 



Group IV. 



Closely resembles *' XanthoWius hamattis," differing by the shorter frontal 

 groove'*, by the gular sutures being effaced and the under surface of the 

 hea-l smooth between the punctures, iu<!tead of finely strigose; there 

 are also some large punctures between the dorsal and sublateral series 

 of the prothorax, which cause the latter series to appear irreaular; the 

 elytra are more strongly punctured and the punctures are not arranged 

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



