50 Mr. T. Tatum on new species of Coleopterous Insects. 



gray, base dark ; mandibles with the tip dark, the base fulvous. 

 Head and thorax smooth and of a brilliant green. Elytra with 

 deep sinuous transverse grooves, at the bottom of some of which 

 are faint reddish reflections. Under part of body green, last 

 divisions of abdomen with a slight golden tinge. Trochanters 

 and femora fulvous. Tibiae and tarsi black. Length 5^ lines ; 

 breadth 1^ line. 



Hab. Brazil. 



This species is larger than the Iresia Lacordairei, its thorax is 

 wider behind, and the elytra are wider than in that species. 



Odontocheila DeGandii. 



Brilliant copper colour with slight bluish reflections. Head 

 large, covered with fine waved lines ; eyes prominent ; palpi and 

 antennae fulvous; clypeus fulvous with black tip; mandibles 

 fulvous with black tips. Thorax narrow, shortish, sides slightly 

 rounded, central furrow well marked; anterior and posterior 

 furrows indistinct; surface marked by numerous waved and 

 irregular striae. Elytra parallel, posterior angles well defined ; 

 posterior margins having a central prominence; the surface 

 covered with irregular and waved striae ; two well-defined white 

 marks on each elytron, one a little below the middle, a sinuous 

 line beginning a little within the margin and ending before 

 reaching the suture in a hook directed forward ; the second mark 

 nearly round, situated just beyond the posterior angle and just 

 within the margin. Under part of the body bright copper, ex- 

 cept last divisions of abdomen which are reddish, and not metallic. 

 Trochanters and upper part of femora fulvous, lower part of 

 femora and tibiae darker, tarsi nearly black. Length 4 lines ; 

 breadth 1 line. 



Hab. Minas Geraes, Brazil. 



In form like O. nodicornis, but less than half its size, and with 

 the thorax neither so long nor so cylindrical as in that species. 



Tetracha viridis. 



Of a brilliant green. Head with two deep irregular indentations 

 between the eyes, surface smooth and polished, with a few slightly 

 marked striae near the eyes ; clypeus black ; antennae brown, the 

 two first joints black, the two next black, with small brown points 

 at the root. Palpi reddish brown, with the tips of the last joints 

 black ; mandibles reddish brown at the base, black at the extre- 

 mity. Scutellum black. Under part of body black with green 

 reflections. Femora black. Trochanters, tibiae and tarsi pitchy. 

 Length 8 lines ; breadth 2^ lines. 



Hab. Minas Geraes (Brazil) ; M. DeGand. 



