OF PHTTOPHAGOUS COLEOPTEEA . 



347 



Lamprosoma Batesi, n. sp. Breviter ovato-rotundatum, metallico- 

 olivaceum, nitidum, ore antennisque (basi fulva excepta) iiigris; cor- 

 pore subtus, capite thoracisque lateiibus mfo-aiireis aut aeneis ; thorace 

 tenuiter, sat remote punctato ; elytris tenuiter punctato-striatis ; clypeo 

 antice abrupte deelivi, leviter concavo-emarginato ; prosterno sub- 

 quadrato, plauo, postice sinuato-emarginato. Long. 3| lin., lat. 

 2| lin. 



Hah. Upper Amazons. 



Head bright rufo-aureous, the extreme vertex olivaceous ; 

 surface very finely rugulose, finely but distinctly punctured ; face 

 immediately above the clypeus faintly transversely excavated ; 

 apical portion of clypeus abruptly incurved, its anterior border 

 concave ; labrum black, its anterior surface deflexed, concave, the 

 anterior border obtusely angulate. Thorax more than twice as 

 broad as long ; sides converging and regularly rounded from base 

 to apex ; basal margin very oblique and feebly bisinuate on either 

 side, apex of median lobe obtuse ; upper surface smooth and 

 shining, finely but subremotely punctured ; on either side at the 

 base, close to the median lobe, is a shallow depression, the lobe 

 itself slightly reflexed. Scutellum dark metallic green. Elytra 

 finely but distinctly punctate-striate, the interspaces remotely 

 impressed with very minute punctures. Presternum subquadrate, 

 plane, its sides sinuate, its apex sinuate-emarginate. 



Lamprosoma hypochryseum, n. sp. Breviter ovatum, postice at- 

 tenuatum, valde convexum, nitidum, supra metallico-caeruleum, saepe 

 viridi micans; corpore subtus, pedibus capite thoracisque limbo apicali 

 angusto angulisque anticis aureis ; abdominis lateribus, ore scutello- 

 que nigris. Var. A. Corpus totum (ore scutelloque exceptis) metallico- 

 caeruleum. Long. 3-3^ lin., lat. 2-2\ lin. 



Sab Mexico, Guatemala. 



Head granulose, distinctly but not closely punctured ; vertex 

 and front impressed with a faint longitudinal groove ^ anterior 

 margin of clypeus concave -emarginate ; labrum black, cupreo- 

 aureous at the base, its anterior surface oblique, concave, its an- 

 terior border obtuse. Thorax about twice as broad at the base as 

 long ; sides rounded and converging from base to apex ; basal 

 margin very oblique on either side, the median lobe angular, its 

 apex obtuse ; above transversely convex, very minutely granulose ; 

 surface sparingly impressed with very fine punctures, which are 

 larger and more strongly impressed on the middle of the base : in 

 some specimens, on either side the basal lobe is a faint ill-defined 



