16*0 MANDIBULATA. — COLEOPTERA. 



Stout, attenuated at the base, with the interniodiate johits transverse, the 

 terminal one conic and longer. 



Not uncommon throughout the metropoHtan district: found also 

 in Suffolk, Norfolk, Devonshire, and near Bristol. 



Sp. 161. dorsalis. Nig-)'a, nitida, suhpunctuhita, cl^iris apiccintcrne pedibusque 

 riifis. (Long. corp. 1| lin.) 



Al. dorsalis. Steph. Catal. 267. No. 2757. 



Shining black, slightly punctulate, and pubescent : head small, subinflexed, and 

 nearly cordate : thorax ample, subtruncate in front, with the angles deflexed, 

 the disc smooth, behind somewhat rounded : elytra short, pitchy, with ike 

 inner angle at the apex dull rufous : abdomen rather broad, slightly acute at 

 the apex, thrice as long as the elytra : legs dull rufous : antenna; pitchy, a 

 little thickened exteriorly, with the terminal joint acuminated. 



Taken within the metropolitan district. 



d. With the elytra rvfous. 



Sp. 162. fuscipes. Nigra, nitidiuscula, dilatata, subpubescens , elytris rufis, 



extus nigris, tibiis riijis. (Long. corp. 3 — 3§ lin.) 

 St. fuscipes. Paylmll.—A\. fuscipes. Steph. Catal. 267. A'b. 2758. 



Black, rather shining, dilated, smooth, slightly pubescent : head small, subin- 

 flexed, cordate : thorax truncate in front, with the angles deflexed, rounded 

 behind, and dilated : elytra shorter than the thorax, bright red towards the 

 suture, exteriorly black: wings black, with the base white: abdomen four 

 times as long as the elytra, obtuse, recurved : legs rufo-piceous, with the 

 femora dusky : antennae pubescent, serrate on both sides, slightly thickened 

 exteriorly, the articulations short, the exterior one somewhat acuminated. 



Variable in size, and slightly so in the colour of the legs and elytra; according 

 to the state of maturity. 



Extremely abundant, beneath decaying carcases, in dimg, &c. 

 throughout the metropolitan district ; also abundant in Suffolk and 

 Devonshire. 



Sp. 163. sanguinea. Nigra, elytris pedibusque sanguineis, antennis bast rufis. 



(Long. corp. 1^ lin.) 

 Al. sanguineus. Linne?— Steph. Catal. "^GT . No. 2159. 



Black, smooth, rather shining : head narrower than the thorax, inflexed, sub- 

 cordate : thorax scarcely longer than the head, truncate in front, rounded 

 behind : elytra longer than the thorax, and wider, dull blood-red : abdomen 

 thrice as long as the elytra, recurved, rather stout, very convex beneath : 

 legs dull red: antennae longer than the head, thickened exteriorly, acute, 

 black, or pitchy, with the base rufous. 



Found with the preceding, but scarce. 



