350 ME. J. BALT ON FEW SPECIES 



angular space above depressed, the former on either side rather 

 more deeply excavated ; anterior margin broadly and deeply ex- 

 cavated, angles of the emargination produced into a stout, obtuse, 

 slightly incurved tooth ; labrum obtuse, its anterior surface ex- 

 cavated. Thorax more than twice as broad as long at the base ; 

 sides obliquely converging and slightly rounded from base to 

 apex ; basal margin very oblique and faintly bisinuate on each side, 

 apex of median lobe obtuse ; surface faintly excavated on each 

 side just in front of the basal lobe, more strongly punctured than 

 the head. Seutellum metallic green. Elytra distinctly punctate- 

 striate, interspaces here and there faintly impresso-strigose, very 

 minutely punctured, the punctures (visible only under a lens) 

 arranged on each interspace in a broad longitudinal row. Pro- 

 sternum narrow, elongate ; sides elevated in front, the space be- 

 tween forming a deep longitudinal groove ; surface coarsely punc- 

 tured. Legs robust, intermediate tibiae not more dilated than the 

 hinder pair. 



Nearly allied to L. amesthystinum ; one half the size, more 

 convex, and more attenuated posteriorly. 



Lamprosoma cuneatum, n. sp. Ovatum, postice valde attenuatum, 

 valde convexum, subtus cum antennis nigrum, supra Isete metallico- 

 purpvu'eum ; capite granuloso, viridi-cyaneo, fortiter punctato, facie 

 supra clypeum fovea magna impressa; clypeo piano, antice truncato ; 

 thorace sat fortiter minus remote punctato ; elytris sat fortiter punc- 

 tato -striatis, interspatiis remote tenuissime punctatis ; prosterno 

 quadrato-oblongo, longitudinaliter concavo, rude rugoso. Long. 3J 

 lin., lat. 2f lin. 



Hal. Amazons. 



Head granulose, coarsely but not very closely punctured ; sur- 

 face of front slightly irregular j face impressed just above the cly- 

 peus with a large deep fovea ; clypeus almost entirely separated 

 from the face by a deeply impressed sutural line ; its surface 

 plane, its anterior border truncate, obsoletely sinuate in the 

 middle ; labrum black, impressed at the base with a transverse 

 row of deep punctures ; its anterior surface oblique, slightly con- 

 cave, its anterior margin very slightly emarginate ; antennae as long 

 as the thorax, the five outer joints rather strongly dilated and form- 

 ing a narrow oblong club. Thorax more than twice as broad aa 

 long ; sides rounded and obliquely converging from base to apex, 

 flattened along the middle ; basal margin very oblique and sinuate 

 on either side, median lobe obtuse ; upper surface rather coarsely 



