Bydnolrius.'] CLAVICORNIA. 41 



Down and Mickleham (Power) ; Manchester and Liverpool district, Higlitown (Archer); 

 Mr. Crotch's specimens named H. spinipes mvwt evidently be referred to this insect, 

 as H. spinipes, if distinct, appears not to have been found in Britain. 



XX. strig-osus, Schmidt. A very small species, oblong, lighter or 

 darker reddish testaceous or ferruginous, sometimes with the head and 

 thorax darker ; antennae entirely reddish testaceous, with a moderately 

 long club, of which the last joint is about as broad as the penultimate ; 

 thorax about as broad as elytra, narrowed in front, broadest near base, 

 posterior angles blunt, upper surface finely punctured ; elytra with sides 

 subparallel until a little before apex, with rather fine rows of punctures, 

 interstices more or less plainly wrinkled transversely, sutural stria deep ; 

 legs clear yellow. L. li-l|mm. 



Male with the posterior femora armed with a broad triangular tooth. 



By evening sweeping; rare; Chatham, Darenth Wood, Caterham, Mieklehani, 

 Forest Hill, Maidstone, Slieppy, Bearstead, Claygate, Birdbrook i Essex). Sandersteud ; 

 Shipley near Horsham ; Boguor, in plenty (Waterhouse) ; Bannouth (Blatch). 



TRIARTHRON, Maerkel. 



This genus contains one species which is found very rarely in England 

 and in Central Europe ; it is distinguished from all the other members of 

 the Anisotomidee except Hydnobius by having all the tarsi 5-jointed ; 

 from Hydnobius it differs in having the club of the antennae 3-jointed ; 

 in the latter genus it is 5-jointed. 



T. Maerkeli, Schmidt. Oblong oval, convex, of a reddish-yellow 

 colour, shining ; head rather larger in male than in female, finely punc- 

 tured ; antennae moderately long, with broad and distinct 3 jointed club ; 

 thorax behind middle as broad as elytra, transverse, with sides rounded, 

 posterior angles rounded, upper surface finely punctured ; elytra with 

 sides gently rounded, with, strongly punctured strice, interstices almost 

 smooth, except for a few widely spread large punctures on the alternate 

 ones; legs rather short. L. 3-3| mm. 



Male with the posterior femora compressed, excised underneath at 

 base, and dilated and denticulate in middle, anterior tarsi somewhat 

 dilated. 



By evening sweeping, invariably beneath fir-trees ; very rare ; E>her (Power and 

 Rye); Shirley (Janson) ; Woking (Saunders and Champion); New Forest (Jauson) ; 

 in the latter locality some very large specimens have been obtained. 



SILPHINA. 



This tribe contains the largest members belonging to the family, 

 including the well-known " Necrophori " or " Burying beetles ;" the 

 anterior coxaa are conical and prominent and furnished with a large tro- 

 chantin or paracoxa, and the posterior coxse are contiguous; the anterior 

 coxal cavities are open behind ; the abdomen has six free ventral segments, 

 and the tarsi are all 5-jointed. 



