40 6TAPHYLINID.E. \_Isclinoylossa. 



thickened, third joint hardly longer- than second, 6-10 strongly 

 transverse ; thorax broader than long, with sides not strongly rounded, 

 rather closely punctured ; elytra a little longer, and evidently more 

 etrongly punctured than thorax, reddish with the region round scutellum 

 and the posterior angles more or less broadly darker ; hind body rather 

 strongly punctured, a little more finely so on the sixth segment, parallel- 

 sided until towards apex ; legs clear reddish testaceous. L. 3 mm. 



Male with the dorsal plate of seventh segment of hind body sometimes 

 obsoletely crenulated, ventral plate prolonged. 



Under bark of various trees ; not uncominon in the Southern anrl IVIidland districts, 

 hut very rure in the north ; Chatham, Darenth Wood, Sliiiley, Richmond, Putney, 

 Croydon, Dulwieh, &c. ; Tonbrid^^e; New Forest ; Hastings under oak-bark ; Burton- 

 on-Treut and many niidhind localities; Liverpool; Manchester; Northumberland 

 district, very rare ; Scotland, very rare, Tay district. 



The var. proUxa (/. prolixa, Kr., Sharp's Cat., &c.) differs from the 

 type form in being entirely red, the head only and one or two segments 

 of hind body before apex being of a pitchy black colour. Apparently 

 very rare ; Cobham ; Loughton. 



X, corticina, Er. {vai^ia, Heer.). This species much resembles the 

 preceding, but is distinctly smaller and narrower, and has the elytra 

 rather less convex and evidently more finely and shallowly although 

 not less closely punctured ; according to Erichson the pubescence is 

 somewhat different in 'colour, and the upper surface is duller; the 

 specimens, however, that I have seen appear to be rather brighter than 

 ordinary specimens of /. prolixa. L. 2i mm. 



The ventral plate of tlie seventh segment of hind body in the male 

 appears to be more prolonged than in tlie preceding species, and the 

 dorsal plate is very obsoletely crenulated, but often shows traces of a 

 larger tooth at each extremity of its apical margin. 



Under bark ; rare; Bromley (Kent), and Mickleham ; Bournemouth; Ni'w Forest ; 

 Needwood Forest; Slierwood Forest; Olton; Dudley; Repton ; Northumberland 

 district, one example, Gosforth Woods; Scotland, very rare. Lowlands, Forth district 

 only. 



OCVUSA, Kraatz. 



About a dozen European species are contained in this genus ; of these 

 two have been usually reckoned as British : two others, however, must 

 apparently be added, which have hitherto been known as Oxypoda 

 incrassata and Aleochara hibernica ; these two species certainly difier 

 considerably inter se, and also from our other members of the genus, but 

 they are regarded by continental authorities as belonging to it, and at 

 all events can hardly be retained in the genera to which they are at 

 present referred in our catalogues : it is most probable that the genus 

 Ocyusa will itself have to be sitbdivided ; the species belonging to it 

 occur in moss, under refuse, &c. 



