COLEOPTERA. 501 



CuRCULio proper(i), 



Which comprises a great number of the genera of Messrs Germar 

 and Sohoenherr, the characters of which are of but little importance 

 and frequently very equivocal. At most, w^e can only detach those 

 whose antennae are proportionally longer. 



Among those in which the antennae are short, the thorax is lon- 

 gitudinal and forms a truncated cone, the shoulders are salient, and 

 of which the genera Entimus, Chlorima, 8cc. have been formed, come 

 certain species from South America, remarkable for their splendour 

 and frequently for their size. 



C. imperialis, Fab. ; Oliv., Col. V, 83, i, 1. A brilliant golden- 

 green with two black and longitudinal bands on the thorax; 

 ranges of golden-green impressed points on the elytra, with 

 black intervals. 



C. regalis, h.; Oliv., Ibid. I, 8. A blue-green, with very 

 brilliant-cupreous or golden bands on the elytra. It is found in 

 St Domingo and Cuba. 



The name offastuosus, nobilis, 8cc. given to other species, indi- 

 cates the magnificence of their attire. 



One of those that inhabit France, which is most analogous to 

 the preceding, is the C. viridis; Chlorima viridis, Dej.; CurciiUo 

 viridis, Oliv., lb., ii, 11. It is about five lines in length; the 

 first joint df the antennae is proportionally shorter than in the 

 preceding species; obscure-green above; sides and inferior parts 

 yellow; the termination of the elytra is somewhat pointed; th6 

 proboscis is carinated. Very rare in the environs of Paris. 



(1) 1. Thorax lobate anteriorly. 



The genera Entimus, Rhigus, Promecops, Phaedropus, Dereodus (subgenus of 

 Hypomeces , Polydius, Entyus of Schoenherr, and the Brachysoma of Dejean, but 

 reduced to the species which he calls the suiuralis. 



2. Thorax non-lobate anteriorly. 



* Thorax sensibly longer than it is wide. 



* Proboscis shorter than the head, of at most of equal length. 



The genera Chrophanus, Itliycerus, Ansemerus, Hypomeces, JLnymecus, Astycus, 

 Lissorhinus, Prostenomus? , Ariipus, Sitona, of Schcenherr. 

 • ** Proboscis evidently longer than the head. 



Th"genera Hadropus, Cyphus, Callizonus. 



** Thorax transversal, almost isometrical. 



The genera Eustales, Exopthalmus, Diaprepes, Ptilopus, Pacnxus, PolydrosuSy 

 MetalUtes. The relative length of the first joint of the antenn?e also furnishes 

 good characters, which might be employe^: before resorting to those drawn from 

 the thorax. See Diet. Class. d'Hist. Nat., article Rhynchophores, and my Faun. 

 Nat. du Regne Animal. 



