38 MANDIBULATA. — COLEOPTERA. 



eyes dusky : the thorax is broader than the head, a little excised anteriorly, 

 and emarginated posteriorly : it is smooth and shghtly convex, with an obsolete 

 longitudinal line, and a deeply impressed one parallel with the anterior 

 margin : the elytra are rather convex, with eight not very deeply impressed 

 smooth striae, the lateral ones being slightly obliterated : the under parts of 

 the body are pitchy-black ; the legs ferruginous-brown, the tarsi and denti- 

 culations being palest : on the intermediate tibiae are two perpendicular spines. 



I have seen but three reputed indigenous specimens of this species, 

 which appear to be distinct from Sc. subterraneus ; thougli, as I 

 have not had an opportunity of collating them together, I cannot 

 confidently assert that they are all the same. Of these the one from 

 which the accompanying figure and description were drawn is in 

 the collection of N. A. Vigors, Esq., and was formerly in that of 

 Mr. Beckwith ; but its locality remains unknown : the second speci- 

 men is in the British Museum, and was obtained from the collection 

 of the late Mr. Lyon, who took it near Dover : and the third specimen 

 was captured about fifteen years since on the Yorkshire coast. 



punctated, with three impressed dots on the disc : the anterior tibiae are tri- 

 dentate in front, and denticidated behind. 

 Martyn appears to have introduced this insect, which is a native of North 

 America, into the British Fauna, probably by mistake for the individual 

 above mentioned, which was in the collection of the late Mr. Beckwith. 



J Sp. 3. Isevigatus. Niger, tibiis anticistridentatis, postice bidenticulatis, elytris 

 oblongis, subdepressis, obsolete striafo-punctatis, punctisque duobus posticis 

 iinp7~essh. (Long. corp. 7 hn.) 



Sc. Iffivigatus. Fabricius. — Wilkin.— Steph. Catal. No. 43. 



Similar to the preceding, but less, and more depressed. Antennae fuscous : head 

 black : thorax black, immaculate, rounded behind, with a central channel : 

 elytra black, very smooth, glossy, but with a lens a trifle striated and punc- 

 tated. ' 



This species appears to have been accidentally introduced into the British list, 

 in a printed list of the rare insects contained in Mr. Wilkins's collection, by 

 mistake, for the insect described above. I have never seen a reputed indi- 

 genous specimen. 



Genus XII.— OxYGNATHUs? De Jean. 



Lalrvm short, indistinct: mandibles porrected, bent, very acute, not dentate 

 internally : labial palpi with the terminal joint nearly cyhndric : mentum 

 trilobate; an tomce moniliform; the basal joint long, the others less, rounded, 

 gradually thickened towards the extremity : bodii oblong, cyhndric : thorax 

 quadrate : anterior tibia; palmated. 



t Sp- 1. anglicanus Plate III. f. 2. Niger, nitidus; antennis, palpis, tarsisgue 

 rtig7-n-piceis. — (Long. corp. 5^ lin.) 



