SOUTH AMERICAN EUMOLPID. 73 
Colaspis basipenne, sp. nov. 
Medium sized; elongate. Chestnut brown, witha metallic green, 
humeral lateral spot, continuing narrowly around the base and then 
running down the suture vanishing at the posterior third; joints 6 
and 7 of the antennz dark (10 and 11 missing). 
Type, ¢, Cochabamba, Bol. (Germ.). 
Length, 7°5 mm. 
Head finely punctured with deep transverse and longitudinal 
grooves ;- thorax grossly and unevenly punctured with scattered 
smooth areas and confluent spaces, sides strongly angulate at 
the middle; scutellum smooth, brown; elytra finely, closely 
punctured, near the suture in rows or semigeminate series, the 
interspaces more or less raised and smooth, becoming well 
developed and regular at the apex; somewhat similar in 
marking to cinctella, Lef., but much larger. 
Colaspis dispar, sp. nov. 
Medium sized. Below neous fulvous, shining, tinged with 
metallic green ; above eneous bronzy, shining, with all the edges and 
punctures coloured with metallic green ; antennz and legs flavous, 
the former darkened at the tip; the hind tibia of the ¢ slightly 
curved at the apex. 
Types, two ¢, two 2, Tanampayo, Boliv. 
Length, 5-7 mm. 
Head rather thickly and coarsely punctured with deep 
transverse and foveate longitudinal depressions ; epistome finely 
punctured ; thorax grossly and unevenly pructate, with scattered 
smooth areas and confluent punctures, sharply angulate each 
side at the middle, with sinuate edges before and behind the 
angle; scutellum smooth; elytral punctuation strong, semi- 
geminate ; intervals pretty well defined as smooth areas, becoming 
strongly costate at rear, where the punctures become simple as 
usual. I place the species near tarsata, Lef., and amazona, Jac. 
Colaspis otilee.:sis, sp. Nov. 
Medium sized. Stout below, with the head and thorax greenish 
eneous, the latter shining, sparsely punctate, sides triangulate ; 
elytra cyaneous blue, tinge’! with green near the thorax; legs black, 
except thighs, which are « :loured like the underside, and rufous at 
the base; antennz very dark fuscous ; elytra square at the base with 
prominent shoulders, each side with eight or nine costz which 
become obsolete in je rear; surface finely punctate. 
Type, 2, Chaco, Bolivia. 
Length, 7 mm. 
Head rather coarsely punctured, front continuous, with a 
well-marked fovea on the vertex; antennz more than half the 
ENTOM.—MaRCH, 1921. G 
