PTIXID.E. — MEZIUM. 335 



ford, Ripley, &c. ; and in Norfolk. " Epping." — Mr. Doublcday. 

 " Hurne." — J. C- Dale, Esq. " Swansea, not uncommon." — L. 

 W. Dilhvyn, Esq. " Houses in Scotland, not uncommon." — Dr. 

 Leach. 



Sp. 7. Lichenum. Niger, elytris fasciis duahus undulatis albis ; antennis pedi- 



busque ritfis. (Long. corp. 1^ — if lin.) 

 Pt. Lichenum. Marsham. — Steph. Catal. 140. No. 1420. — Pt. similis. Steph. 



Catal. 140. No. 1421. $. 



Oblong, black or fuscous : thorax gibbous, obsoletely bidentate : elytra striate, 

 undulated with white, or obsoletely clothed with the same: scutellum white : 

 antennae and legs rufous ; the femora slightly clavate. The female with the 

 abdomen more tumid, the elytra more distinctly marked, and the antenna; 

 shorter. 



Not so frequent as the last ; found chiefly in hedges, old trees, 

 &c, in various parts throughout the metropolitan district. " Palings, 

 Cobham." — A. Cooper, Esq. " Windsor." — Mr. Waterhouse. 



Genus CCLIII. — Mezium, Leach. 



Antennae approximating, subfiliform, robust, squamous; the basal joint slightly 

 clavate, and the two following a little stouter than the remainder, which are 

 subequal, the last being longest and obliquely acuminated : head small: eyes 

 minute: #iora,z pubescent, longitudinally squamous: scutellum wanting: elytra 

 connate, gibbous, shining, subhyaline : legs rather long ; femora clavate. 



Mezium differs from Ptinus by having the elytra connate, or 

 united, and extremely smooth and glossy, the antennae squamous, 

 with the second and third joints somewhat incrassated, and the ter- 

 minal one acuminate : the scutellum wanting, and in other less 

 evident characters : in habit it however resembles the Ptini, sub- 

 sisting upon dried decaying animal and vegetable substances. 



Sp. 1. sulcatum. Thoraee villoso albido, elytris fusco-testaceis, nitidis. (Long. 



corp. l;j — if lin.) 

 Pt. sulcatus. Fabricius.—Me. sulcatum. Steph. Catal. 140. No. 1422. — Curtis, 



v. pi. 232. 



Head and thorax clothed with a whitish down, the latter with two longitudinal 

 elevated ridges down the centre, and the margin thickened : elytra gibbous, 

 very smooth and polished, fusco-testaceous or castaneous: legs and antenna; 

 white. 



Not very common ; found occasionally in old houses in London; 



