26 MANDIBULATA. — COLEOPTERA. 



b. Body short. 

 Sp. 13. truncatellus. Brevis, ceneo-mger, elytris substriatis, disco 



impunctato, pedibus piceis. (Long. c. 1| lin.) 

 Ca. truncatellus. Linne. — Dr. truncatellus. — Steph. Catal. No. 24. 



Very similar to Dr. foveolus, but at once distinguished from it by the absence 

 of the impressed dots on the elytra^ its smaller size, and more elongate form. 

 Above glossy black, with a shght igneous tinge : thorax rather deeply chan- 

 nelled : elytra rather convex, black, glossed with brassy, obsoletely striated, 

 but without any foveolse on the disc : body beneath smooth, glossy black : 

 thighs pitchy black : shanks and tarsi brownish : mouth and palpi blackish- 

 brown. 

 Found in dry sandy and gravelly situations, beneath stones, near 



London. 



Sp. 14. foveolus. Brevis, eeneo-niger, supra-ceneus, elytris obsolete 

 striatis, disco bifoveolato. (Long. c. If — 2 lin.) 



Le. foveola. Gyllenhal. — Dr. foveolus. Steph. Catal. No. 25. 



An elegant and very common species : above brassy black : the head is broad 

 and smooth : the thorax a little wider than the head, and narrower posteriorly, 

 with an impressed longitudinal hne : the elytra are stiU wider than the thorax, 

 they are obsoletely striated, and have each two deeply impressed dots near the 

 third stria ; the under parts'are glossy black : the legs the same, with the tarsi 

 brownish. 

 Frequent throughout the metropolitan district*, in sand and 



gravel pits ; also beneath stones ; and under bark and moss in the 



winter. 



Genus VIL — Lebia, Latreille. 



Palpi with the terminal joints filiform, nearly ovate, slightly truncate at the 

 tip : labium elongate, rounded, hirsute : labial palpi with the two basal joints 

 short, the third and fourth elongate : mentum with the sides lobed, centre 

 produced, not toothed : labrum suborbicular : mandibles dentated at the base : 

 tarsi with triangular joints, the penultimate bifid : antennce gromng thick 

 towards the tip, with the third joint longest, the second shortest, the rest 

 nearly equal in length, the terminal one being rather the longest. Head ovate, 

 a trifle produced behind : thorax transverse, with the hinder margin produced 

 into a lobe in the middle : eli/tra very broad : body short, much depressed : 

 claws denticulated : wings long. 



As before remarked, the individuals comprised in this genus are 

 more frequently observed beneath the bark of trees than under 

 stones, but in Britain they are very rare ; they are usually very 



• The circuit comprised within twenty-five miles of St. Paul's. 



