288 . STAPHYLTNiDZE [XcinthoUnus. 



a. Elytra shorter ; dorsal series of thorax consist- 



ing of some twelve or sixteen pnnctures ; 

 thorax evidently more closely punctured at 



sides X. LINEARIS, 01. 



b. Elytra longer ; dorsal series of thorax consist- 



ing of some ten or twelve punctures ; thorax 



less closely punctured at sides X. longiventeis, Heer. 



X. fulgridus, F. (EuUssvs {Gyrohypmis) fulgidus, Mannh,, Gauro- 

 pterus fulgidm, Thorns.). Elongate, very narrow, shining black, with 

 the elytra brilliant red ; head oblong, rectangular, parallel-sided, a little 

 broader than thorax, with large, coarse, oblong punctures, which on the 

 sides form continuous lines ; the forehead is broad, with two long deep 

 striae ; antennae short, plainly thickened, pitchy brown, with first joint 

 black, and apex often lighter, penultimate joints strongly transverse ; 

 thorax oblong, widest in front, evidently narrowed behind, where it is 

 narrower than elytra, with a deep furrowed stria on each side near 

 margin, formed of confluent punctures, disc smooth ; scutellum black 

 "with large, scattered punctures ; elytra scarcely as long as thorax, with 

 two rows of shallow punctures, one near suture, and one on disc, and 

 scattered punctures between ; hind body long, finely and sparingly 

 punctured j legs pitch-black or black, with the tarsi, trochanters, and 

 knees lighter. L. 9-10 mm. 



Male with the seventh segment of hind body subtruncate at apex, seg- 

 ment of armature distinct, sinuate at apex. 



In hotbeds, rubbish heaps, and vegetable refuse generally ; somewhat widely distri- 

 buted in England, but, as a rule, it occurs very sparingly and cannot be considered 

 by any means common ; Wandsworth, Clapham, West Ham, Dulwich, Bplvedere, 

 Ealiug, Micklebam, Tonbridge, Birdbrook (Essex); Kiugsgate; Littlington (Sussex) ; 

 Devonshire, Exeter, &c. ; Wicken Fen ; Repton ; Lincoln ; Northumberland and 

 Durham district, banks of Tyne, Derwent, and South Shields. 



X. g-labratus, Grav. {Xantholinus {Megalinus) glahratus, Muls. et 

 Key). Elongate, parallel-sided, rather robust, shining black, with the 

 elytra bright red; head large, suboblong, distinctly narrowed in front, 

 broader behind than thorax, very finely punctured, and furnished, 

 especially towards the sides, w^ith large coarse pores ; forehead with four 

 deep convergent stria3, of which the inner ones are most distinct ; antennae 

 short, brownish red, with the first joint black, joints 4-10 strongly 

 transverse ; thorax oblong, plainly narrowed behind, where it is narrower 

 than elytra, with two dorsal and two lateral series of large punctures ; 

 elytra about as long as thorax, sparingly punctured, the punctures being 

 sometimes arranged in irregular rows ; hind body finely and sparingly 

 punctured ; legs black or pitchy brown, with the tibiae often less dark, 

 and the tarsi reddish. L. 10-14 mm. 



Male with the seventh segment of hind body subtruncate at apex, 

 segment of armature more or less projecting, and strongly sinuate on its 

 ventral surface ; in the female this segment is also strongly emarginate 

 beneath. 



