108 PHYTOPHAGA. 



metallic cupreous, finely margined with blue, surface closely but rather finely punctured ; scutellum blue ; 

 elytra very distinctly geminate punctate-striate, metallic blue ; underside and legs blackish blue ; tarsi 

 obscure fulvous. 



Hab. Guatemala, San Geronimo (Champion). 



Although I have only one specimen of this species to examine, I believe it to be 

 distinct from C. corrusca and C. ornata, the differences consisting in the blue head and 

 the absence of the cupreous spot at the apex of the elytra. C. igneicollis, Baly, is much 

 larger, and differs in the coloration of its head and underside. 



8. Chrysodina ornaticollis. 



Oblong-ovate, greenish black below ; first five joints of the antennae testaceous ; head and thorax aureous, the 

 latter closely punctured ; elytra violaceous, strongly punctate-striate ; tarsi fulvous. 



Length 2 lines. 



Head deeply and closely punctured at the vertex, more distantly at the middle ; clypeus separated from the face 

 at the sides only, the space in front of the antennae and the anterior margin of the clypeus metallic blue ; 

 antennae half the length of the body, black, the first five or six joints testaceous ; thorax transversely 

 convex, the anterior angles acute and rather thickened, upper surface brilliant aureous, very finely and closely 

 punctured ; elytra violaceous blue, strongly and rather regularly punctate-striate, the punctures diminish- 

 ing at the apex ; underside and legs greenish or purplish ; tibiae obscurely, tarsi light fulvous. 



Hab. Mexico, Playa Vicente (Edge), Oaxaca, La Paxada (Boucard, coll. Salle), Guana- 

 juato (Duges, coll. Salle). 



The principal distinguishing characters of this species are the blue margin of the 

 clypeus, the bright aureous colour and fine punctuation of the thorax, and the colour of 

 the elytra. The general shape of the insect is also more oblong than is usually the case, 

 in which respect it resembles somewhat the species of the genus Typophorus. 



9. Chrysodina pubescens (Tab. VI. fig. 7.) 



Oblong, greenish aeneous below ; base of the femora and of the antennae fulvous ; above light green, opaque, 

 finely subpunctate-striate ; elytra and thorax covered with fine whitish hairs. 



Length 1| line. 



Head flat, greenish opaque, scarcely visibly punctured ; anterior margin of the clypeus concave-emarginate ; 

 antennae robust, nearly as long as half the body, the apical joints gradually widened and thickened, black, 

 first six joints fulvous ; thorax transversely convex, sides straight at the base, from there to the apex 

 rounded and narrowed ; surface opaque, light green, very minutely punctured and covered with fine silky 

 but short white hairs ; scutellum of the same colour ; elytra moderately convex, punctured and coloured 

 like the thorax, the punctures, however, placed more or less distinctly in double rows ; the interstices 

 pubescent like the thorax, but the hairs set in rather regular lines ; underside and legs more shining and 

 darker, the base of the femora, to a larger or smaller extent, fulvous. 



Hab. Mexico, Guanajuato (Duges, coll. Salle). 



In the peculiar colour and pubescence of its upper surface this species forms a great 

 exception to the general rule of the other highly metallic species, but its well-marked 

 generic characters show it to be a true Chrysodina. It is another instance, analogous to 

 a true Lamprosoma described by me, of a species having its upper surface covered 



