Steiin>i.] STArnYr,iNrn,i5. 339 



S. atratulus, Er. A small, lilack, rathor shining species ; heail 

 broader than thorax, more so in male tlian in female, with two broad 

 rather feeble furrows on forehead separiited by a narrow raised keel ; 

 antennfB short, black, palpi black with Ijasal joint testaceous or rufo- 

 piceous ; thorax somewhat dilated in middle where it is about as broad 

 as long, with an obsolete dorsal channel, strongly and closely punctured ; 

 elytra wider and considerably longer than thorax, strongly and closely 

 punctured, wath an elevation between suture and shoulders ; hind body 

 evidently narrowed behind in male, thick and scarcely narrowed in 

 female, rather coarsely punctured, with the four keels at the base of each 

 of the front segments conspicuous; legs black.* L. 2|-2| mm. 



Male with the sixth and seventh ventral segments of hind body very 

 feebly sinuate on apical margin. 



Damp places, in moss, at roots of grass, &c. ; rare ; Battersea Park (Rye) ; Doiii- 

 fonl, Somerset (Power); Lewes; Weymouth; Bristol; Coleshill and Kiioulo, near 

 Birmingham (Blateh) ; Bewdley ; Repton (Garneys) ; Slirewsbury ; Southport (sanil- 

 bills) ; Northumberland district, more plentiful on the coast thau inland ; not 

 recorded from Scotland. 



S canaliculatus, Gyll. (congener, Maekl.). Eather dull black, 

 front parts somewhat leaden, clothed with a fine, short and close, ashy 

 pubescence ; head broader than thorax, rather strongly and thickly 

 punctured, almost even with traces only of the usual furrows ; antennae 

 short, black, palpi black, with the first joint, and extreme base of 

 second, testaceous ; thorax longer than broad with sides slightly 

 rounded, very thickly and rather strongly punctured, with a fine but 

 very distinct central channel extending throughout its length ; elytra 

 a little longer than thorax, rather strongly and closely punctured, 

 without depressions on disc ; hind body rather hnely and thickly punc- 

 tured ; legs black. L. 3^ mm. 



Male with the seventh ventral segment of hind body emarginate at 

 apex, the sixth segment also showing traces of emargination. 



Marshy places, banks of ponds, streams, and rivers; also at roots of grass, in moss, 

 &c. ; rather local, but not uncommon ; London district, generally distributed ; Glau- 

 villes Woottou ; Brighton ; Devonshire ; Bungay, Suffolk ; Fen districts ; Kepton ; 

 Boston; Lincoln (banks of Witham) ; Manchester; Liverpool; Northumberland and 

 Cumberland, ratiier rare; Scotland, scarce, Solway, Forth, and Clyde districts; 

 Ireland, near Belfast. 



S. nitens, Steph. (a'muJus, Er.). Very like the preceding in 

 general shape, and also resembling it in having a distinct dorsal centml 

 channel extending the whole length of the thorax; it is, however, at 

 once distinguished by its rather narrower form and much more shining 

 appearance, the colour being shining black and not dull ; the head is 

 considerably broader in proportion to the thorax, and the punctuatiun 

 of the front parts is much coarser ; the hind body is less deeply punc- 

 tured, and very shining; the size is somewhat variable. L. 3^-4 mm. 



* I have seen specimens in which the legs are pitchy or brownish. 



Z 2 



