LAMPEOSOMA. • 93 



From the preceding species, excepting L. magicum, the present one principally 

 differs in its small size, the black underside and tarsi, and the very distinct punctua- 

 tion of its head and thorax. A specimen lately received from M. Boucard differs 

 from the Costa-Rican specimen in the much wider metallic aureous bands of the 

 thorax, which leave only a central narrow space of the ground-colour, but agrees in all 

 other respects with the type, which is figured here. 



7. Lamprosoma ignicaudatum. 



Lamprosoma ignicaudatum, Lacord. Mon. p. 582. 



Hab. Mexico. 



This species is coloured like several others, especially like L. chapuisi, Jac, but 

 differs in having a smooth head and thorax. 



8. Lamprosoma nigripenne. 



Broadly ovate, very convex anteriorly, black ; head, lateral and anterior margin of the thorax aureous, the 

 latter closely punctured ; elytra distinctly punctate-striate. 



Length 2 lines. 



Head moderately convex, very minutely granulate, finely and rather closely punctured ; parts of the mouth 

 and the jaws and antenna? black, the latter with the basal joint fulvous below ; thorax closely punctured 

 at the disk, obsoletely and finely near the sides, the latter and the anterior margin coloured like the head, 

 rest of the surface black ; elytra broad, very convex at the anterior third, thence to the apex greatly 

 deflexed, black, shining, each elytron with ten very distinct rows of punctures ; below and the legs black, 

 outside of the anterior and part of the intermediate femora metallic green; prosternum longer than 

 broad, narrowed behind, its surface finely rugose. 



Hab. Guatemala, Chacoj (Champion). 



There will be no difficulty in recognizing this species, the black ground-colour of the 

 elytra and thorax and the broad peculiarly shaped form being its special peculiarities. 

 Only a single specimen was obtained by Mr. Champion. 



9. Lamprosoma chlorizans. (Tab. v. fig. 20.) 



Oblong, convex, black ; above dark blackish blue ; sides of the thorax and apex of the elytra, as well as the 

 legs, greenish golden ; head and thorax finely granulate ; elytra deeply punctate-striate. 



Length 2 lines. 



Head very dark violaceous, minutely granulate and punctured, anterior margin of the epistome moderately 

 concave ; jaws black ; antennae black, second and third joints fulvous ; thorax much narrowed anteriorly, 

 its sides much rounded near the base, thence to the apex straight, surface very minutely punctured, finely 

 granulate at the golden-coloured portion, the rest of the surface more shining, and in the shape of a 

 dark blue central longitudinal band, which is much widened at the apex ; elytra not narrowed posteriorly, 

 very regularly and deeply punctate-striate, dark violaceous, the apex with a short, but broad, metallic 

 greenish-golden band. Underside and the tarsi black ; legs greenish golden. 



Hab. Mexico, Tuxtla (SalU). 



The smaller size, the colour of the head, and the shape of the thoracic metallic 

 lateral bands distinguish this species from all others. 



