April, 1844.] 39 



tip : black or very dark brown, with the posterior edges of the segments obso- 

 letely rufous ; densely and finely punctured; pubescent : feet rufo-testaceous. 



OXYPOR1D-E, Erichson. 

 Qdedius, Leach. 



l.Q. bardus. Black ; thorax pitchy dark reddish-brown ; base of the an- 

 tenna;, palpi and feet, dull rufous. — 2^ 1. long. Pennsylvania. 



Antennas almost half as long again as the head, dark ferruginous; third 

 one-fourth longer than the second ; two basal joints rufous : head suborbicu- 

 rate, narrower than the thorax, black and highly polished ; two impressed 

 punctures behind, and one at the inner margin of each eye; palpi dull ru- 

 fous : thorax as wide as the base of the elytra, slightly contracted before ; 

 convex, with the base and sides rounded ; apex truncate, with the anterior 

 angles square and deflexed ; dark reddish-brown piceous, shining; six small 

 dorsal punctures, three in each row, the third of which is placed on the ante- 

 rior margin, and is somewhat remote from the others, and also a little aside 

 of the row; lateral punctures about four, the nearest one to the dorsal punc- 

 tures is placed triangularly with the two hindermost ones : scutel piceous, 

 impunctured ; elytra black-piceous, with sparse irregular punctures ; a dis- 

 tinct sutural stria; ; glabrous : abdomen brownish-black, finely punctured ; 

 pubescent : feet dark rufous; anterior tarsi moderately dilated. 



2. Q. terminatus. Black; terminal abdominal segments rufous; feet 

 piceous. — 3^ 1. long. Pennsylvania. 



Staphylinus hmmorrhotdalis, Melsh. Catal. 1302. 



Head subovate, not as wide as the thorax, black and very shining ; four large 

 punctures, one on the inner margin and another behind each eye: thorax 

 wider than long, and wider than the elytra, slightly contracted before : base with 

 the posterior angles and sides regularly rounded ; apex truncate, with the ante- 

 rior angles almost square, deflexed ; black, very shining; three small equidis- 

 tant dorsal punctures in each series, posted before the middle; lateral punctures 

 two or three ; scutel black, opake, impunctured : elytra distinctly and sparsely 

 punctured, and transversely rugose; black, very finely pubescent: abdomen 

 black, with a steel-blue reflection, two terminal segments rufous, punctured 

 and finely pubescent: feet piceous, with a rufous tinge; tarsi almost rufous 

 anterior pair strongly dilated : postpectus sparsely and profoundly punctured. 



Oxyporus, Fabricius. 



1. O. dimidiatus. Testaceous, head, thorax, exterior angles of the elytra, 

 and pectus, black. — 3| 1. long. Pennsylvania. 



Antennae short, and as in vittatus .- head and thorax as in vittatus : elytra 

 testaceous, with only the posterior outer angles black: abdomen rufous, with a 

 blackish or brown spot on each side of the fifth and sixth segments beneath : 

 feet testaceous ; pectus black. 



Resembles very much one of the varieties of vittatus, but it is destitute of the 

 black suture of the elytra, which is a constant character in all the varieties of 

 that species. 



2. Q.brevis. Testaceous; eyes and exterior posterior angles of the elytra, 

 black.— 3^ 1. long. New York. 



