32 MANDIBULATA. — COLEOPTERA. 



to the eyes in the thorax, the latter more or less emarginate on its anterior edge, 

 the sides depressed, deeply margined ; elytra broad, entire, rarely truncate, 

 subovate, glabrous, deeply margined, and in general concealing the extremity 

 of the abdomen : body ovate, or elliptic, broad, obtuse, somewhat depressed : 

 legs short; tibia broad, the anterior elongate- triangular; tarsi pentamerous, 

 with the third joint dilated and bifid, the following minute, indistinct. 



From Thymalus, this genus may be known by .its more de- 

 pressed peltate body, but more especially by the structure of its 

 antennae, of which the basal joint is generally orbicular and con- 

 siderably dilated, the third joint longer than the fourth, and the 

 capitulum is abrupt, and composed of three broad, coarctate, joints; 

 the tarsi have the third joint dilated and bilobed, and the tibise are 

 broad. The species frequent putrid animal and vegetable sub- 

 stances, old bones, &c, and some few delight in revelling amongst 

 flowers. 



A. Thorax with the disc unequal, foveolated. 



Sp. 1. marginata. Ovata, Jerruginea, elytrorum disco convexo sulcata fusco, 

 parce ferrugineo maculato. (Long. corp. 2— 2\ lin.) 



Ni. marginata. Fabricius. — Steph. Catal. 78. No. 825. 



Ovate, ferruginous: head rather dull, finely punctured, eyes prominent, black, 

 thorax with the disc very convex, not foveolated, dull fusco-ferruginous, 

 thickly but very finely punctate; elytra ovate, subacuminated behind; the 



. sides deeply margined and ferruginous, the disc convex, thickly punctured, 

 with four sulci, of a dull fusco-ferruginous, with two small spots at the 

 base, and a larger common, truncate, one in the middle, of a brighter 

 ferruginous ; body beneath and legs ferruginous. 



Very rare : it has been once taken at Birchwood, and two or 

 three times at Coombe. I once captured a single specimen in 

 May, beneath the bark of an old birch, at the latter place, in com- 

 pany with the two following species, which were in plenty. 

 " Netley, under injured bark of oaks. - " — Rev. F. W. Hope. 

 " Bristol. ,, — Dr. Leach. 



Sp. 2. punctatissima. Ovata, subconvexa, obscure Jerruginea, creberrime punc- 

 tulata, thorace incequali elytrisque nigro variegatis. (Long. corp. 3 — 3^ lin.) 

 Ni. punctatissima. Illiger. — Steph. Catal. 78. No. 826. 



Ovate, somewhat convex, duU ferruginous; head unequal, much punctured, 

 obscure dusky between the antennse posteriorly; eyes prominent, black; 

 thorax deeply notched in front, broader and truncate behind; the sides 

 obscure ferruginous, punctulated ; the disc rather convex, unequal, foveolated, 

 obsoletely variegated with black : elytra broad, ovate, rounded behind ; the 

 disc slightly convex, much punctured, of an obscure ferruginous, varie- 

 gated with obsolete, irregular, confluent, black marks ; and a little beyond 



