146 MANDIBULATA. COLEOPTERA. 



Broad and depressed : shining black : head smooth : thorax bluish or greenish^ 

 rather obsoletely and irregularly wrinkled transversely, with a longitudinally 

 rugose triangular space anterior to the dorsal line, which is somewhat faint 

 and abbreviated posteriorly, and a broad transverse space behind, thickly and 

 ruggedly punctate, with a rudimentary impression on each side towards the 

 angles : elytra striated, the stria impunctate ; the margin irregularly punctate 

 towards' the apex, the marginal striae with several minute impressed dots, the 

 third interstice from the margin with six or eight, the fifth with one or two, 

 and the eighth (or second from the suture) with one impression at the apex, 

 close to the imion of the striae : legs pitchy-black : claws rufous : antennae 

 pitchy-fulvous, with the base pale or rufous. 



Tills approaches near to the Ca. crassipes of Duftschmid ; but his insect differs 

 in having numerous puncta on the third interstice of the elytra, and none on 

 the fifth and eighth : from his Ca. depressus it may be known by the latter 

 insect having but seven deep impressions, as noticed below ; but with his Ca. 

 corvus I suspect it will prove synonymous. 



Taken, tliougli rarely, beneath, stones at Darentli and Coombe 

 woods. " In Oxfordshire." — Rev. F. W. Hope. " By the Roman 

 pavement, Thruxton, Hants, but very sparingly, in March." — Rev. 

 G. T. Rudd. " Leith-hill, Surrey, in September."— Jfr. Water- 

 house. 



2. With the thorax attenuated posteriorly. 

 Sp. 16. cupreus. Plate VIII. f. 4. — Crassus, niger, nitidus, supra viridi-micans, 



suturd fuscescente, elytris striatis, striis subpunctatis, thorace postice nigro- 



punctato, utrinque fovea subriigosd. (Long. corp. 6 lin.) 

 Ha. cupreus. De Jean. — Steph. Catal. p. 30. No. 263. 



f Sp. 15. depressus. Niger depressus, thorace antice subangustiore, elytris sub- 

 punctato-striatis, antennarum basi rufd. — Duftschmid. (Long. corp. 6^ hn.) 

 Ca. depressus. Duftschmid. — Ha. depressus. Steph. Catal. p. 30. No. 262. 



According to Sturm's figure this insect is more elongate than the preceding, and 

 the thorax is considerably narrower in proportion : its general aspect is very 

 similar, but the base of the antennae alone is rufous : the upper surface is en- 

 tirely black ; and the impressions at the apex of the elytra are different, the 

 third and fifth interstices having but three large impressions on each, and the 

 eighth one minute dot, the margin being impunctate. 



I have not seen an indigenous example of this species, which J introduced into 

 my Systematic Catalogue on the authority of the Leith-hiU specimens of Ha. 

 thoracicus, which had been pronounced synonymous with the Ha. depressus 

 of Sturm : but having been recently favoured with an inspection of the spe- 

 cimens themselves, I have ascertained that they do not differ from those I 

 formerly possessed by the MS. name of Ha. thoracicus. Ha. depressus must 

 consequently for the present be expunged from the list of British species. 



