40 MANDIBULATA. — COLEOPTERA. 



Cu. marginatus. Paykul.~Ne. marginatus. Steph. Catal. 156. No. 1583, 



Somewhat depressed, black, with fuscous scales above, and white beneath : thorax 

 black, punctatedj with the sides pale and unarmed, the anterior margin re- 

 flexed : elytra faintly striated, obscure black, with minute fuscous and whitish 

 scales ; with a streak on the suture, and the outer margin anteriorly white : 

 legs fusco-piceous, femora fuscous, with an obsolete small tooth : antennae 

 piceous. 



Not common : occasionally taken in hedges near London. 

 *' Among herbage (near Swansea), not uncommon ; and some- 

 times on Reseda lutea." — L. W. Dillwyn, Esq. " Black Hall 

 Wood."— r. C. Heysham, Esq. 



Genus CCLXXXV. — Rhinoncus, Schdnherr. 



Antennae geniculated, 12-jointed, rather short, slender; funiculus 7-jointed, 

 its basal joint incrassated and elongate, the two following also elongate, sub- 

 clavate, the remainder short, subnodose ; the club ovate, acuminate. Rostrum 

 short, stout, and inserted during repose in a pectoral cavity: head rather 

 depressed: eyes prominent: thorax slightly coarctate in front: scutellum mi- 

 nute : elytra shorter than the abdomen : legs moderate ; femora simple ; iibias 

 truncate at the apex and unarmed ; tarsi with two claws. 



The short incrassated rostrum of this genus at once distinguishes 

 it from Nedyus, from which it also differs in the structure of the 

 antennae: its head is more depressed, and the eyes more promi- 

 nent : — from Mononychus the presence of two claws readily sepa- 

 rates it. 



A. With the thorax bituberculate. 

 a. With the thoracic tubercles obtuse, 



Sp. 1. Pericarpius. Subovatus, niger, sutures basi corporeque albido-squamosis, 

 antennis pedibusque ferrugineis, elytrorum interstitiis subtiliter coriaceis. 

 (Long. corp. 1^—2 lin.) 



Cu. Pericarpius. Linne.? — Rh. Pericarpius. Steph. Catal. 156. No. 1585. 



Broad, subovate, black, whitish beneath : thorax deeply punctate, with a faint 

 dorsal channel, and an obsolete tubercle towards the base of the lateral 

 margin : elytra convex, deeply punctate-striated, the interstices rugulose, the 

 base of the suture with an oblong common snowy-white spot: legs stout, dull 

 rufo-ferruginous ; antennae ferruginous, with the basal joint pale. 



Frequent on thistles and docks near London, especially in a wood 

 near Highgate. " Dalston, Cumberland."" — T. C. Heysham, Esq. 



