48 MANDIBULATA. COLEOPTERA. 



head rugose : thorax longer than broad, attenuated behind, depressed above, 

 with a deep longitudinal groove : it is transversely rugose throughout, of a 

 deep violet, often tinged with green, with the margin itself black : the elytra 

 are oblong-ovate, the base rather broader than the thorax, the shoulders 

 obliquely rounded, a Httle dilated beyond the middle, and the apex obliquely 

 truncate : in colour they are deep sliining violet ; the suture is a trifle ele- 

 vated, and on each elytron are three series of oblong olivaceous or bronzed 

 tubercles; the rest of the surface is very rugose, with elevated, irregular, 

 glossy, intricate striae, especially towards the sides : the under parts of the 

 body are deep glossy blue-black j the legs are long, black; the four basal 

 joints of the antennse are black and glabrous, the rest brownish and pubescent. 



Few specimens of this noble insect (which is one of the largest 

 indigenous Coleoptera) have hitherto been captured in Britain: 

 the first was taken by Dr. Leach, about sixteen years ago, near 

 Tavistock, and is in the British Museum : about four years since 

 three or four more were taken, I believe, by Mr. Tucker, in the 

 neighbourhood of Ashburton ; and last year a fine and perfect male 

 was found by J. Abraham, Esq. in some dried wood brought from 

 the vicinity of that place, and by him kindly presented to my 

 cabinet. One of the above specimens is in the collection of Mr. 

 Samouelle. 



Sp. 3. catenulatus. Oblongus, sup7-d nig7-o-cyaneus, elytris striis elevatis scahris 

 interstitiis subrugosis, punctisque impressis triplici serie, marginibus cyaneis. 

 (Long. corp. 10 — 13 lin.) 



Carabus catenulatus. Fabricius. — Steph. Catal. No. 63. ' 



Head black, glossed with violet, obsoletely striated and dotted, with a deeply 

 impressed spot between the antennas : thorax subcordate, thickly and rouglily 

 punctate ; of a deep violet tinge ; with a shght longitudinal groove ; the 

 margin much elevated, especially behind ; anteriorly a httle emarginate, 

 posteriorly deeply so : the elytra are oblong-ovate ; convex above, black, the 

 margin deep cyaneous or purphsh, with about fifteen elevated hnes on each, 

 much interrupted and crenated, with the third, seventh, and eleventh from the 



J Sp. 2. purpurascens. Ater, thoracis eltjtrorumque margine vioJaceo, elytris 



striatis. (Long. corp. 1 unc. 1 lin.) 

 Carabus purpurascens. Fabricius. — Stewart, v. ii. p. 80. — Steph. Catal. N'o. 62. 



Head black ; thorax black, its margin acutely elevated, violet ; elytra black, 

 convex, ruggedly punctate, with the margin purphsh violet : body beneath 

 smooth, shining black : legs glossy black : antennce black, with the tips 

 brownish. 



I have not seen an indigenous specimen of this insect : its admission into our 

 Fauna originated with Stewart, who has introduced it as above quoted, probably 

 by mistake, for C. catenulatus. 



