39G STAPHYLiNiDiE. [^CompsockUus. 



elytra oblong, consideraLly longer than thorax, rather finely pnnctured in 

 more or less distinct rows ; hind body elongate, subparallel, almost 

 smooth and impunctate ; legs yellow-testaceous. L. 3-4 mm, 



Male with the seventla ventral segment of hind body rounded at apex, 

 female with the same segment somewhat angularly rounded. 



Banks of ponds and ditches, by sweeping long grass and herbage towards evening ; 

 once taken on the wing; very rare ; Sheerness (Walker); Tonbridge (Wollaston) ; * 

 Wandsworth (Waterhouse) ; Caterham, one example brushed from long grass on the 

 banks of a pond, July, 1875 (Champion). The antenna? are sometimes entirely testa- 

 ceous, and the head entirely red ; the males are generally of a duller red colour, 

 according to Mulsant and Rey, and have the hind body occasionally almost entirely 

 black or brownish, with the exception of the apex. 



DEZiEASTER, Erichson. 



This "enus seems to form a transition between the Oxytelinse and the 

 Homaliinte, its members bearing a strong superficial resemblance to 

 Antlwphagus; it only .comprises three or four species from Europe, 

 North America, and Southern Abyssinia ; they are active in their move- 

 ments and live under stones, &c., on the banks of ponds and streams ; 

 our single species appears to be taken mostly on the wing ; the legs are 

 elongate, and the tarsi are all five-jointed. 



D. dichrous, Grav. Rather broad and depressed, of a bright tes- 

 taceous-red colour, with the head black, and the hind body pitchy black, 

 the lateral margins, which are very broad and much raised, and the apex, 

 beinf^ brownish or reddish ; head subtriangular, broader than thorax, 

 smooth and shining on disc, duller towards base ; eyes large and pro- 

 minent ; antennae long, and somewhat thickened towards apex, ferru- 

 ginous, with base often lighter, joints 5-10 almost equal in length, 

 oblong ; thorax subcordiform, much narrower than elytra, strongly 

 rounded in front and evidently narrowed behind, sparingly, and rather 

 coarsely, but not deeply punctured, with a short channel on centre of 

 disc and a depression before scutellum ; elytra about twice as long as 

 thorax, and much broader, finely and thickly punctured, entirely reddish- 

 testaceous ; hind body with sides somewhat rounded, evidently, though 

 finely, punctured at sides, disc smooth; legs reddish-testaceous. L. 



6-7 mm. 



Male with the seventh ventral segment of hind body truncate at apex, 

 and the four first joints of anterior tarsi slightly dilated and furnished 

 with very close-set hairs beneatli ; in the female the anterior tarsi are 

 simple. 



In rotting leaves, under stones, &c. ; on the banks of ponds ; mostly taken on tlie 

 wing; not common ; Lewisham, Maidstone, Croydon, Caterham, Hammersmith, 

 Colne'y Hatch, Norwood, Bromley, Bearsted, &c. ; Hastings ; Salford ; Bewdley 



* Since the above was written this species has been taken in some small numbers 

 near Tonbridge (June 1887) by Mr. Horner and Mr. Blatch. 



