164 MANDIBULATA. COLEOPTERA. 



Genus CCCXLII. — Rhinodes, De Jean. 



Antennce not geniculated, 12-jointedj arising from the middle of the rostrum, 

 curved, the basal joint elongate clavate, the second short, robust, obconic, the 

 third smaller, the five following short, somewhat cup-shaped, gradually thick- 

 ening to the club, which is 4-articulate, elongate-ovate, acuminate. Rostrum 

 scarcely longer than the head, nearly straight, cylindric : eyes large, approxi- 

 mating : thorax posteriorly subtruncate : elytra somewhat cylindric, convex, 

 subtruncate anteriorly : legs moderate : femora simple, or obsoletely dentate : 

 tibiae with a minute hook at the apex within. 



In the dissimilar form of the thorax, and diversity of structure in 

 the antennse, as well as of that of the elytra and general habit, 

 the femora being simple, &c. the present genus differs from the 

 foregoing: — the larvae are sluglike and glossy, and found upon 

 the leaves of trees of the cherry and plum kind. 



Sp. 1. Pruni. Niger, subopacus, antennis Jerrugineis, thorace hituberculato, 



elytris crenato-striatis. (Long. Corp. l\ — if lin.) 

 Cu. Pruni. Linne.—R\\. Vic-am.— Steph. Catal. 183. No. 1872. Rh. caliginous. 



Steph. Catal. 183. No. 1873. var. 



Black, nearly opaque ; head large, thickly but obsoletely punctured, with a 

 narrow impressed line between the eyes : thorax with the hinder angles pro- 

 minent, above slightly convex, closely punctate-granulate, with a few scat- 

 tered lines, with an obsolete channel in the middle of the anterior margin, 

 and on each side, in the middle of the lateral margins, an elevated obtuse 

 tubercle : elytra elongate, crenate-striate, with the interstices narrow, convex, 

 and ruggedly punctate : antennce ferruginous. 



Var. With the club of the antennae dusky or black. 



Very abundant on the sloe-trees within the metropolitan district 

 in June. " West-walls."— 7". C. HeijsJiam, Esq.—'' Bottisham.'' 

 — Rev. L. Jenyns. 



Sp. 2. Cerasi. Ater, opacus, thorace antice punctatissimo, elytris striatis, inter- 

 stitiis creberrime granulato-coriaceis. (Long. corp. 2 — 2^ lin.) 



Cu. Cerasi. Linne.Sh. Cerasi. Steph. Catal. 183. No. 1874.— Rhi. Rhina. 

 Steph. Catal. 184. No. 1875, male. 



Black, opaque : head obsoletely punctured, with a faint impression on the fore- 

 head : thorax short, coarctate and depressed anteriorly, the sides very much 

 rounded, and the hinder margin deeply bisinuated, with the outer angles acu- 

 minated, the disc rather deeply and thickly rugose-punctate : elytra rather 



