Rhinoncus.] RHYXCHOPHORA. 371 



Much smaller than either of the two preceding species, oblong-oval, 

 moderately convex, black, with the sides of the thorax and the under- 

 side clothed with white scales, which are also scattered more or less 

 thickly over the upper surface and form a patch at scutellum ; base of 

 antennae, tibiae and tarsi, and sometimes femora, ferruginous or pitchy 

 yellowish brown ; thorax subcylindrical, about as long as broad, with 

 sides rounded in middle and narrowed in front and behind, deeply and 

 coarsely punctured, without central channel or lateral tubercles ; elytra - 

 evidently longer than together broad, with deep punctured striae, inter- 

 stices narrow, somewhat rugose ; in quite fresh specimens there are 

 distinct oblique bands of scales on the elytra and sometimes the suture 

 behind middle is thickly clothed with white scales. L. 2-2| mm. 



In damp places ; on species of Polyffonum ; somewhat local, but rather common 

 and generally distributed from the Midlands southwards ; rarer farther north ; it is 

 recorded from the Northumberland and Durham district but has not hitherto been 

 found in Scotland ; Ireland, Galway, common (J. J. Walker) and Armagh. 



R. castor, F. (granulipennu, Gyll.). Short oval, moderately convex, 

 black or pitchy black, underside thickly clothed with whitish scales, 

 sides of thorax and central line with more or less distinct greyish or 

 greyish-yellow scales, elytra with the interstices more or less thickly 

 speckled with the same scales which are thicker and form a conspicuous 

 oblong patch at the base of suture ; antennae reddish testaceous, with 

 club darker, legs reddish testaceous with the extreme apex of tibiae and 

 apex of tarsi dark ; thorax slightly transverse, obsoletely channelled, 

 with a blunt tubercle on each side, strongly and closely punctured ; 

 elytra much broader than thorax, with the shoulders well marked, and 

 with punctured striae, interstices moderately broad, tuberculate. L. 

 2-2f mm. 



In sandy places ; by sweeping herbage ; perhaps, according to M. Bedel, on Poly- 

 gonum aviculare ; also found at roots of Rumex acetoseUa and in moss ; by no means 

 uncommon, bet somewhat local in its distribution ; London district, Kent, Surrey, 

 and the South-Eastern counties, generally distributed and common ; also widely dis- 

 tributed along the South coast; Devon, rare; Bristol; Swansea; Barmonth; 

 Norfolk ; Suffolk ; Midland districts, very local, Repton, Matlock, 4c.; Scarborough ; 

 Liverpool ; Manchester district, general ; Northumberland and Durham district, 

 rare, Gibside, near Gilsland, and Hetton Hall, near Belford; Scotland, common, 

 Sol way, Tweed, Clyde, Forth, Tay, -Moray and probably other districts; Ireland, 

 Dublin and Belfast, and probably general. 



R. bruchoides, Herbst. (asperatus, Gyll.). Rather smaller, on an 

 average, than the preceding, which it resembles in having the interstices 

 of the elytra tuberculate or asperate ; it may however be easily known 

 by its darker, more pitchy, colour and by having no distinct greyish 

 patch at the base of suture ; short, convex, thickly clothed with whitish 

 scales beneath, upper surface with scanty cinereous scales which, in 

 quite fresh specimens, sometimes form three whitish lines on thorax ; 

 antenna? and legs ferruginous; thorax broader than long, not strongly 



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