SOUTH AMERICAN CHRYSOMELIDiE. 163 



Chrysodina alutacea, n. sp. 



Obscure asneous, above obscure cupreous, base of the antennas 

 fulvous ; upper surface minutely granulate ; thorax finely and sub- 

 remotely, elytra distantly punctured in longitudinal rows. Length, 

 4 mill. 



Of an obscure opaque cupreous colour ; the head minutely granu- 

 late and extremely finely punctured ; the antennas very short, the 

 lower six joints fulvous, the rest black, the penultimate four joints 

 strongly widened, the terminal one more elongate but thickened ; 

 thorax about one-half broader than long, the basal margin broadly 

 rounded and produced at the middle, the surface minutely granulate, 

 finely and rather remotely punctured, the sides obliquely narrowed 

 towards the apex, the basal margin with a row of closely placed 

 stronger punctures at the sides ; scutellum broad, its sides rounded, 

 impunctate ; elytra sculptured and punctured like the thorax, but the 

 punctures widely placed and arranged in distant longitudinal rows, the 

 last two interstices at the sides slightly convex ; under side and legs 

 very dark asneous. 



Hab. Bolivia. 



The entire very finely granulate upper surface of this species, 

 giving it an opaque but subrnetallic appearance, will distinguish 

 it from any other described Chrysodina. I have preserved the 

 name given to it by Lefevre, who had the insect for examination. 



Chrysodina cupricollis, n. sp. 



Blackish, the breast metallic green ; head and thorax bright 

 cupreous, strongly and subremotely punctured ; elytra metallic green, 

 strongly subgeminate, punctate-striate. Length, 4 mill. 



Head minutely granulate, remotely but distinctly punctured ; cly- 

 peus wedge-shaped, punctured like the head, its anterior edge oblique 

 at the sides, emarginate at the middle ; labrum and palpi piceous ; 

 antennas black, the lower five joints more or less fulvous, the basal 

 one metallic green above ; thorax twice as broad as long, the sides 

 obliquely rounded and narrowed in front, the surface rather remotely 

 and strongly punctured, bright cupreous, the basal margin with a row 

 of stronger punctures ; scutellum broad, cupreous, impunctate ; elytra 

 much more strongly punctured than the thorax, metallic green, the 

 basal portion without depression, the punctures anteriorly arranged 

 somewhat in double rows, singly below the middle, the interstices flat 

 and impunctate, below nearly black, the breast metallic green, the 

 tibias slightly of the latter colour ; tarsi piceous. 



Hab. Eosario, Argentine Eepublic. 



Of same coloration as C. opulenta, Lefev., but nearly black 

 below ; the head and thorax of different sculpture ; the antenna? 

 differently coloured. Two specimens in my collection 



Chrysodina paraguayensis, n. sp. 

 Metallic bluish below, above metallic green ; the basal joints of the 

 antennas fulvous ; head and thorax subremotely and finely punctured ; 



