42 CATALOGUE OF THE INSECTS OF 



longer than the thorax, subquadrate, sparingly and finely punctate, 

 most so at the apex, the punctures of various sizes ; depressed on 

 each side of the suture towards the base, and again slightly before 

 the base, within the shoulders; fusco-piceous, shining, slightly 

 subreneous, the apex by degrees subdilute; shortly griseous pubes- 

 cent. Abdomen black, rather shining, thickly and very finely 

 punctate, with a fine rather abundant griseous down, the apex 

 and the margin of the fifth segment sometimes piceous. Legs 

 red or rufo-testaceous ; the tips of the femora occasionally some- 

 what darker. 



Kare. At South Shields, and on the banks of the Derwent, 

 near Axwell. — J. H. May. 



This is larger than any other British species I have examined. 

 2. S. AFFiNis, Erich. 



Niger, antennis fusco-rufescentihus, pedibus testaceis, femo- 



ribus apice tibiisque i?ificscatis ; tkorace carinato ; elytris 



subceneis, subtiliter punctatis, apice testaceis. Long. 2-2^ 



lin. 



Erichson, Gen. et Spec. Staph., 633. — Rugilus affinis, Heer, 



Fn. Col. Helv., i., 232. 



About the size, or slightly larger than S. orbiculatus, black, 



head and thorax opaque, shortly and finely pubescent, elytra 



shining subaeneous. Antennae a little longer than the head, 



subincrassate towards the apex, third joint longer than the 



second, scarcely one half longer, 4 — 10 gradually shorter and 



thicker, piceo-rufous, or obscure rufescent, the basal joint sometimes 



darkened above, the apex having a testaceous ring. Maxillary 



palpi rufo-piceous, third joint fuscescent. Labrum piceous, the 



margin rufescent. Head scarcely of the breadth of the elytra, 



orbiculate, very thickly and strongly punctate, longitudinally 



rugulose, with a smooth shining line on the front. Thorax almost 



twice as narrow as the elytra, shaped nearly as in the last, obliquely 



narrowed in front, and gently towards the base, a little longer 



than broad, moderately convex, very thickly and strongly punctate, 



with a broader central longitudinal line, finely canaliculate 



throughout, though less distinct in front. Elytra a little longer 



than the thorax, more transverse, or wider in proportion to the 



