ActoUuS.] STAPIIYLINID^, 285 



portion ; the male characters are much the same as in the procecUng. 

 L. 4 mm. 



Marshy places ; at roots of grass ; also running on the mud ; rare ; Strood, Barnes, 

 Cliobliain, Putney, Shirley, Keip^ate, Morton, Sanderstead, Cowley ; Folkestone ; 

 Luccombe Chine, Isle of Wight ; Lyniington; Liverpool; Scotland, very rare, Sol way 

 district. 



The next three species belong to the sub-genus Blsnius, Thorns., 

 which is said to be distinguished from Remus by not having the second 

 joint of the antenna3 dilated, and from Cafius and Philonthus by having 

 the first joint of the hind tarsi subequal to the fifth,* and joints 1-4 

 decreasing gradually in length ; the species of Bisnius differ very much 

 in general appearance from the ordinary Philonthi, and somewhat 

 resemble the smaller species of Laihrohium. 



A. villosulus, Steph. (Bisnius elongatulus. Thorns.). Elongate, linear, 

 shining black, with the elytra pitch-black, lighter at apex ; head sub- 

 quadrate, a little broader than thorax, strongly and rather thickly punc- 

 tured on the sides, more sparingly on disc, antenna rather short, entirely 

 testaceous, with the penultimate joints evidently transverse ; thorax 

 longer than broad, hardly narrowed behind, narrower at base than elytra, 

 rather strongly and thickly punctured, with a smooth central space ; 

 elytra a little longer than thorax, depressed, finely and rather thickly 

 punctured, black, or shining pitch-brown with the apex sometimes 

 reddish ; hind body finely and rather thickly punctured, with segments 

 2-4 impressed at base, the impressions being almost smooth, sixth 

 segment often less dark, and always smoother and more shining ; legs 

 testaceous, anterior tarsi moderately dilated in both sexes. L. 3|- 

 4 mm. 



Male with the seventh ventral segment slightly sinuate in middle of 

 apical margin with a smooth, triangular space before the sinuation. 



Marshy places, in moss, flood refuse, &c. ; rare; Putney, Wandsworth, Shirley, 

 Cowley, Mickleham, Colney Hatch; Bewdley ; Withington, Cheshire; Stretford, 

 near Manchester, on the wing ; Scotland, very rare, " south of Scotland and Kinross- 

 shire, A. Murray." 



A. procerulus, Grav. {Bisnius p-ocerulus, Thoms., semipundatus, 

 Fairm., lathrobioides, Baudi.). Of the same shape and colour as the 

 preceding, black, with the elytra black or pitch-brown, lighter at apex ; 

 the antennae are longer, with the penultimate joints only slightly trans- 

 verse, blackish, witli the base testaceous ; the punctuation of the head 

 and thorax is rather closer than in P. villosulus, and that of the elytra is 

 rather stronger ; the colour of the legs also is much darker ; the male 

 characters are much the same as in the other two species. L. 3|-4 mm. 



In cut grass, flood refuse, &c., generally in marshy places; local ; London district, 

 not uncommon, Whitstable, Lee, Mickleham, Peckham, Shirley, Cowley, Sevenoaks, 



* The character of the relative length of the joints of the posterior tarsi in this 

 group, which is much used by authors, is not a very satisfactory one in many cases. 



