282 CLAVICORNIA. [_Co7im()mus. 



middle, dorsal keels not strong; elytra elongate oval witli deeply pnnc- 

 tured striae, alternate interstices feebly raised, hardly costiform ; 

 anterior coxae separated by the prosternal process ; legs testaceous. L. 

 Ij-lf mm. 



Male with the anterior tibiae slightly curved. 



Under bark, &c. ; a doubtful species ; Mr. Rye has a single specimen without 

 locality, and I have a record from Burton ; Mr. Blatch records it from Knowle near 

 Birmingham (on a damp wall), and Wicken Feu (sedge refuse) ; the next species, 

 however, varies very considerably, and in all probability the two species are synomy- 

 nious. 



€/. carinatus, Gyll. This species is very closely allied to the pre- 

 ceding and, allowing for the variation of the species generally, it can 

 only be regarded as distinct on the ground of the anterior coxae being 

 contiguous, the prosternal process being reduced to a very fine keel ; it 

 differs also in having the thoracic keels less marked, and the intervals 

 of the elytra more strongly raised ; tlic general form is a little narroAver, 

 and the colour as a rule is darker ; several of these points, however, 

 are very variable, and it would almost appear to be best with Reitter and 

 others to consider this species a variety of C. constrictm. In the 

 catalogue of Heyden, Reitter, and Weise it is not even regarded as a 

 variety. L. 1|-1| mm. 



Under bark, in moss, dead leaves, &c. ; rare ; Shirley, Esher, Caterham, Mickle- 

 ham, Sydenham ; Tilgate Forest jBirdbrook ; Wicken Feu ; Littlington, Cambridy:^ ; 

 Glauvilles Wootton ; 8pridlington near Lincoln (taken ou the outer walls of a newly 

 erected house by Mr. WoUastoa). 



ENICMVS, Thoms. 



This genus contains at present six British species ; E. consimllis, how- 

 ever, cannot be retained ; they differ from those belonging to the pre- 

 ceding genera by having no raised ridges on thorax, and from Cartodere 

 by their shorter head and less elongate and more convex form. 



I. Prosternum not raised in a keel between the anterior 

 00X03 ; elytra glabrous, rather short oval, with some- 

 what strong punctured striae (s.g. Conithassa, Thoms.) E. MINUTUS, L. 



II. Prosternum raised in a keel between the anterior 

 coxffi. {Enicmus, i. sp.) 



i. Antennae slender with the club not very abrupt, 

 reaching beyond middle of thorax. 



1. Thorax as a rule square or very nearly as long 



as broad, never cordiform ; colour reddish- 

 testaceous ; punctured striae of elytra rather 

 strong E. teansveesus, 01. 



2. Thorax as a rule more or less strongly trans- 



verse ;* punctured striae of elytra fine. 

 A. Upper surface black ; thorax with sides very 



slightly contracted behind E. EUGOSrrs, ITerlsf. 



* There is an extreme variety of E. rugosus which has the thorax subquadrate ; 

 this may, however, be separated by the fine sculpture of the elytra. 



