NORTHUMBERLAND AND DURHAM. 43 



thorax, than in some other species, sparingly and finely punctate, 

 more obsoletely at the apex, the punctures more equal than in S. 

 rufipes, depressed at each side of the suture, nigro-piceous sub- 

 aeneous, shining, apical margin testaceous, better marked than 

 in S. orhiculatus, sparingly pubescent. Abdomen very thickly 

 and finely punctulate, shining, with a distinct, short appressed 

 pubescence. Legs testaceous, the anterior and intermediate coxoe, 

 piceous, posterior red, sometimes all rufescent, the femora at the 

 apex and the tibiae more or less saturate with fuscous, tarsi 

 rufescent. In damp situations, not common. At Budle Crag, 

 South Shields, Marsden, and on the banks of the Derwent, near 

 Axwell. — /. H. April — May. 



3. S. ORBicuLATUs, Paylc. 



Ericlison, Gen. et Spec. Staph., 634. — Rugilus orhiculatus, 

 Steph. lUust, Mand., v., 11%.—Eeer, Fn. Col. Helv., 

 i., 232. 

 Bare. Under stones, at South Shields, and on the Derwent. — 

 J. H. Long Benton, and CuUercoats. — T. J. B. 



Sub-Family 3. STENIDES, Mannerheim. 

 130. DiANous, Leach. 



\. D. CCERULESCENS, Gyll, 



Curt. Brit. Ent., pi. 107. — Erichson, Gen. et Spec. Staph., 



689. — Steph. Manual, No. 3260. — Stenus coerulescens, 



Gyll. Ins. Suec, ii., 463. — Dianous rugulosus, Steph. 



Illust., Mand., v., 436. 



Rare. One specimen found in the Ouseburn Dean, in April. — 



T. J. B. 



131. Stenus, Latreille. 



Div. 1. Tarsi with the fourth Joint simple. 



SuB-Div. a. Abdomen margined. 



* Elytra spotted. 



1. S. BiGUTTATUS, Linn. 



Gyll. Ins. Suec, ii., 464. — Steph. Illust., Mand., v., 302. — 

 Erichson, Gen. et. Spec. Staph., 690. 

 Banks of streams, Gosforth, Tyne side, banks of the Derwent 



