Entomological Society. 



6073 



Saprinus metalHcus, Fabr. Two specimens taken at Deal by Mr. F. Smith. This 

 insect is given as British by Mr. Stephens, but he had mistaken the S. rugifrons, Payk., 

 for the species. 



Ahrceus (Acritus) nigricornis^ Ent. H. Found in the months of May and June in 

 the corridor of the Crystal Palace. 



Calodera riparia, Erichs. A single specimen taken by Dr. Power at Holme 

 Bush. 



Mr. Waterhouse also exhibited a specimen of a Plegaderus, which he supposed to 

 be the P. dissectus, Erichs.^ and stated that it was one of two specimens found in 

 Windsor Forest by Mr. Samuel Stevens: a notice had already appeared relating to 

 the discovery of the insect by JMr. Stevens, and Mr. J. F. Stephens, who published 

 this notice in the ' Zoologist,' had regarded the insect as Abraeus vulneratus, Kug, 



Mr. Waterhouse then proceeded to describe four species of Staphylinidae, which he 

 believed to be new : — 



OXYPODA NIGEINA. 



O. Nigra, opaca, sericeo-pubescens, pedihus fuscescentibus, corpore fusiformi, supra 

 confer tissime punctulato. Long. 1 lin. 



Very close to Oxypoda cuniculina, Erichs., but rather smaller and usually of an 

 uniform sooty black colour; the antennaB rather shorter, the terminal joint compara- 

 tively short and obtusely pointed ; the elytra rather less strongly notched at the pos- 

 terior outer angle ; the tarsi (more especially the posterior pair) shorter. Head about 

 one-third narrower than the thorax, rounded, convex ; the parts of the mouth dusky ; 

 anlennaB about as long as the head and thorax, gradually increasing in widih to the 

 apex, the last joint decidedly the shortest; first and second joints moderately elongate, 

 obconic, and nearly equal ; third joint about half the size of the preceding ; of the re- 

 maining joints the first two or three are quadrate or nearly so, and the remainder (with 

 the exception of the last) distinctly transverse. Thorax gradually contracted from the 

 base to the fore part, the sides and the posterior margin gently rounded ; above con- 

 vex and even, or with a very indistinct dorsal furrow. Elytra about one-fourth longer 

 than the thorax and rather broader, the puncturing fine, and, being extremely dense, 

 produce a dull appearance. Abdomen attenuated and also very finely and densely 

 punctured, the last segment and the edge of the preceding one often fuscous. Legs 

 more or less dusky, with the knees and tarsi fusco-testaceous. 



I met with this insect at Charlton in June, 1856, and at Erith in July, 1855, and 

 some other localities not distant from London ; it is also found in Scotland, Mr. Morris 

 Young having taken it at Paisley. 



Oxypoda nigro-fusca. 



O. Fusco-nigra, tkorace, elgtris, abdominisque apice fuscis ; pebidus testaceis ; corpore 

 fusiformi, supra confertim subtilissime punctulato. Long. 1 lin. 



It was with some little hesitation that I ventured to separate this species from 

 O. hsemorrhoa, Mannerheim, so much does it resemble that insect in size and form, as 

 well as in the structure of the antennae ; the fuscous thorax and elytra I at first thought 

 might only be indications of immaturity; I found, however, that all the specimens 

 which presented this colouring had the thorax dull, whereas in 0. hsemorrhoa the 

 same part is somewhat glossy, and upon placing the two insects side by side under a 

 XVI. 2 F 



