352 MANDIBULATA. — COLEOPTERA. 



Ch; cuprea. Fabric ius.— IS! . G. cuprea. Steph. Catal. 214. No. 2306 *. 



Somewhat oblong-ovate, brassy-g7een, with a golden tint, shining: head finely 

 punctured, with a faint groove on the forehead : thorax with the lateral margins 

 incrassated, and deeply punctate, the di.sc very ohsoIeteJy punctured, with a 

 faint dorsal furrow : elytra ample, gibbous, of a coppery hue, irregularly and • 

 thickly punctured, with an elevated callous at the shoulder, and between the 

 latter and the suture a deep fovea : body with its lateral margins and the 

 apex rufescent : antennce piceous black, with the base mfo-piceous. 



A very rare Britisli species ; my specimens I obtained from the 

 Marshamian Cabinet. 



Genus CCCCVIIL— Helodes, Pa?/kiil 



Antennce scarcely larger than the thorax; the basal joint large, clavate; four 

 following slender, nodose; the remainder forming an elongate club, of which 

 the four basal joints are semiglobosej terminal joint large, obtuse. Palpi 

 short, thickened in the middle, with the terminal joint short, obconic : man- 

 dibles unidentate : head porrect, narrowed anteriorly : eyes oblong : thorax 

 quadrate, slightly emarginate anteriorly : body elongate, sublinear, three times 

 as long as broad, somewhat depressed : legs very short, slender, simple : tarsi 

 slender; basal joints uniform. 



The distinctly clavate antennae of this genus, united to the slen- 

 derness of their basal joints, the short, subfusiform-shaped palpi, 

 the terminal joint of which is short, obconic, the quadrate thorax, 

 elongate body, slender tarsi, &c. well distinguish it from the other 

 genera of this family: — the species reside in damp places, feeding 

 upon aquatic plants. 



Sp. 1. Phellandrii. JVigro-cenea, nitida, thoracis margine laterali elytrisque 



Jlavis suturd totd mtt&que media ceneis. (Long. corp. 2\ — 3 lin.) 

 Ch. Phellandrii. Linne.— Steph. Catal. 225. No. 2308.— Ch. calmariensis. Don. 

 vi. pi 185. / 1. 



Black or greenish-brass, shining : head punctate, with a frontal impression : 

 thorax with a subovate aeneous patch on the disc, the lateral margins broadly 

 yellow : elytra punetate-striate, yellow, or ochraceous, with the suture entirely, 

 and a broad' longitudinal streak on each elytron greenish- or black-brass : 

 body beneath with its apex and the sides of the thorax luteous : legs brassy, 

 with the base of the femora and the tibiae entirely luteous : antennae brassy 

 at the base, the apex black. 



Very abundant in marshy places throughout the metropolitan 

 district, during the spring and early summer months. " Raehills, 

 frequent."— J?ec'. W. Little. " York."— W^. C. Hewitson, Esq. 



