198 GEO. H. HORN, M. D. 



very little wider than the head, longer than wide, sides nearly straight, sub- 

 parallel or slightly broader behind, base broadly arcuate, surface very coarsely 

 punctured, rather densely at the sides, very distantly on the disc which has a 

 broad median smooth space and one less defined on each side; surface glabrous 

 slightly pubescent near the margin. Scutellum velvety. Elytra wider than 

 the thorax, conjointly as wide as long, surface densely punctured and opaque, 

 sparsely clothed with brownish pubescence. Abdomen above sparsely punctu- 

 late, last three segments with large punctures irregularly placed, sparsely 

 clothed with brownish pubescence, segments 2 — 6 with a double row of 

 velvety spots; beneath sparsely punctate and with brownish pubescence. 

 Body beneath sparsely punctate more densely at the sides with brownish 

 pubescence. Legs piceous, femora sparsely punctate. Length .50 — .64 inch ; 

 12.5—16 mm. 



An easily known species by the nearly parallel thorax as well as by 

 the very coarse and irregular punctuation. 



Occurs from Massachusetts to Pennsylvania, and is more abundant 

 near the sea-shore. 



1.EISTOTROPHIIS Perty. 



The principal diifereuce between this genus and Staphylinus is 

 found in the form of the maxillary palpi, the last joint being some- 

 what shorter and more slender than the preceding. The lateral lines 

 of the prothorax are similarly confluent. 



Two species occur in our fauna which represent distinct divisions 

 of the genus, differing as follows : 



Eyes large. Antennae with joints 1 — -5 slender and hairy, joints 6— 11 opaque, 

 densely finely punctulate, subserrate, the terminal joint very obliquely 

 emarginate, subacuminate. 



Head and thorax coucolorous; tip of abdomen with golden pubescence. 



cingiilatus. 

 Eyes rather small. Antennee with joints 1 — 3 elongate, four oval, these hairy 

 and moderately shining, 5 — 11 opaque, transverse, densely finely punctulate, 

 the terminal emarginate and transverse, not acuminate. 



Head reddish yellow; abdomen with segments 5 — 6 with grey silken 

 pubescence capitatus. 



Ii. Cingulatus Grav.. Micr. p. 166; Erichs. Staph, p. 360; chr*i/surus Kbj% 

 Fauna Bor. Am. p. 94; speciosus Mann. Brach. p. 21. — In addition to the above 

 characters it will be observed that the tarsi are more slender than in the next 

 species. This is especially the case in the last joint of the anterior tarsi. The 

 hind angles of the head are also more abruptly formed. This species is so 

 common as not to require any further description. Length .50 — .60 inch; 

 13—15 mm. 



Occurs everywhere east of the Rocky Mts. and in Vancouver. 



L4. capitatns Bland, Proe. Ent. Soe. 1864, p. 65. — Form moderately elon- 

 gate, black, head pale rufous. Head suborbicular, rather suddenly constricted 

 posteriorly, hind angles broadly rounded, surface finely and densely punctured, 

 sparsely clothed with pale pubescence. Eyes ovate, slightly oblique, subtrun- 

 cate in front. Antennae rufous, usually darker externally, a little longer than 

 the head. Thorax a little narrower than the head, longer than wide, narrowed 



