CHALCODERMUS. 317 
da. Prothorax punctato-strigose ; elytra not rougher at the base, the 
alternate interstices a little raised anteriorly . . . . . . dentipes, sp. n. 
el", Prothorax punctato-strigose ; elytra not rougher at the base, the 
alternate dorsal interstices raised throughout . . . . foveolatus, sp. n. 
h", All the tibie more or less angularly or subangularly dilated at the 
middle within, the hind pair sometimes simply sinuate; not or 
feebly mucronate at the inner apical angle. 
jf". Alternate elytral interstices: raised at the base and apex; pro- 
thorax punctate; form broad . . . .....~. . . variolosus, sp. n. 
gl". «ere interstices more or less convex on the apical declivity. 
. Prothorax confluently punctate; elytra subtriangular, almost 
glabrous . . . . Boe ee ee curvipes, sp. 1. 
6*. Prothorax coarsely, obliquely strigose ; elytra subcordate, with 
a close line of whitish scales on the interstices 3 and 7 . . . Jlineatus, sp. n. 
h!", Elytral interstices flat ; prothorax punctate, strigose towards the 
sides and apex . .. . . . . . radiatus, sp. n. 
a", Hlytral interstices convex throughout, the surface vittate ; pro- 
thorax obliquely strigose. . . . . . . . . we). CUvittatus, sp. n. 
jl". Elytral interstices sharply and narrowly costate, the vestiture of 
the surface rather coarse and abundant, tending to form narrow 
fascie ; prothorax densely, obliquely strigose . . . . . . mexicanus, sp. n. 
Kil, Elytral interstices very narrow and raised between the seriate 
fovere, 3, 5, and 7 a little more prominent; prothorax coarsely 
strigose, the ruge becoming longitudinal anteriorly; body black. Jongirostris, Fahr. 
a", All the tibiz simply sinuate within, serrate from a little below 
the base to the apex, and mucronate at the inner apical angle; 
prothorax obliquely strigose; elytra elongate-triangular, with flat 
interstices . . 2 oe . Loe ee ew ee ee) Serripes, Fahy. 
b. Rostral canal broad and deep, extending to the metasternum, the anterior 
and intermediate cox excavate within; elytra angulate at the sides 
below the base, the humeri obtuse ; all the tibize with a sharp median 
tooth within, the two hinder pairs sharply mucronate at the inner apical 
angle; body black . 2. . 2. 1. 1. 1 ee ew ee ee ew we Crassipes, sp. Nn. 
1. Chalcodermus dentiferus. (Tab. XVII. figg. 2, 2a, ¢; 2, ant. tibia.) 
Chalcodermus dentiferus, Faust, Stett. ent. Zeit. 1893, p. 365, nota’. 
Hab. Mexico ! (Sallé), Vera Cruz (Hoge), Temax in N. Yucatan (Gaumer) ; Bririse 
Honpuras, Rio Hondo (Llancaneaux). 
This insect is eneous or cupreo-eeneous in colour, with the prothorax very coarsely, 
longitudinally strigose; the elytra with rows of coarse, deep punctures, which are 
separated by unequal distances from each other, the interstices flat, the humeri denti- 
form, and the surface clothed with small scattered patches of whitish pubescence. 
