458 Mr. M. Jacoby on 



in having long filiform auteuna3 and ratlicj' broad and flat 

 elytral epipleuroe; the absence of a thoracic groove at the 

 sides below, distinguishes the genus from Clialcopltyma 

 and Chcdcoplacis. Lamprosphihvus is entirely confined to 

 South and Central America, and contains at present species 

 which are much more elongate or oblong in shape than 

 the typical forms described by Baly ; at the same time, I 

 see no reason to separate these generically, as so many 

 intermediate degrees exist and as there is an absence of 

 structural differences. 



LamiJrosj^hmrus licohrus, sp. n. 



Subelongate, piceous, the basal joints of the antenna) and the tarsi 

 fulvous, thorax minutely and closely punctured ; elytra finely punc- 

 tate-striate, the punctures nearly obsolete below the middle, the 

 Ijasal portion fulvous, the posterior two- thirds bluish black. 



Length 4 millim. 



Fern. Head with a few very fine punctures, the clypeus similarly 

 punctured, triangular, its anterior edge fulvous, nearly straight, 

 labruin piceous, antenna) slender, extending below the middle of 

 the elytra, black, the lower three joints fulvous, terminal joints 

 elongate, scarcely tliickened, third joint one-half longer than the 

 second but mucli shorter than the foiirth joint ; thorax more tlian 

 twice as broad as htng, distinctly narrowed in front, tlie anterior 

 margin half the width of the posterior one, tlie sides rather strongly 

 rounded, with a narrow margin, the surface closelj^ and finely 

 punctured throughont, piceous, with a slight greenish tint ; elytra 

 ratlier elongate, the base with a feeble transverse depression, the 

 surface finely punctate-striate, the punctures as well as the strire 

 rather distantly placed, the base with a transverse fulvous band 

 extending to one-third the length of the elytra, the rest of a bluish 

 black colour ; below and the legs piceous, the tarsi fulvous. 



Hob. Rio Janeiro. 



A species of rather elongate shape and of nearly the 

 same coloration as L. dimidiatus, but that species is less 

 elongate, with metallic blue underside and legs, the 

 elytra ai'e more strongly punctured, and the fulvous 

 portion is distinctly narrowed at the suture. I only know 

 a single female specimen. 



