496 SOUTH AMERICAN HALTICIDAE (cOLEOPTERA) 



developed, not transversely depressed, punctures distinct to apex, pubescence 

 very short, fine and siUcy and somewhat thicker at apex; four anterior tibiae 

 and tarsi very dark rufous, claws bifid. 



This form together with quadri-plogiatus Jap., 7'iibripenms Jac, 

 and rufolimhatus Jac. seem to be closely allied. 

 One example. 



Homotyphus boiivianus nov. »p. 



Entirely reddish fulvous, darker in the very deep elytral de- 

 pression, the siu'face sparsely clothed with sericeous pubescence, 

 which is most noticeable on the disk and apex of the elytra, an- 

 tennae incrassate, thorax with a deep longitudinal fovea begin- 

 ning at or just back of the anterior edge and ending just back 

 of the middle. 



Type. — Cochabamba, Bolivia. (Germ.) Length 2.25 mm. 



Clypeus with a transverse carina, having a short branch in the middle 

 extending between the antennae, front with two well developed round tubercles 

 between the eyes, with a fovea between, rear part of head closely punctate; 

 antennae reaching a little below base of elytra, stout, incrassate, middle joints 

 darkened; thorax elongate, sides sub-angulate at middle (like Tetragonotes) 

 and rounded and depressed in front (like Rkinotmetus), ui:)per surface with a 

 deep oblique fovea on each side behind, running from the middle of the base 

 towards the anterior angles, the effect being to make in connection with the 

 median fovea, two high ridges which join behind the middle at a point; elytra 

 with punctures arranged in form of striae, obsolete behind, antemedian de- 

 pression is very marked and forms a strong callous on each side of the scutel- 

 lum, the claws are bifid. 



An aberrant species and by the form of thorax a kind of con- 

 necting link. 

 One example. 



Homotyphus crassus nov. sp. 



Stout and parallel sided, general color rich brown, almost 

 black, with the head, thorax and base of elytra and scutellum 

 livened with shining yellow pubescence, antennae rufous, the joints 

 five, six, nine and eleven paler, tarsi, especially the posterior, 

 rufous, elytra spinous at base, behind the middle and near apex. 



Type. — ^Cochabamba, Bolivia. (Germ.) Length 7 mm. 



Front of head with a well marked ridge between the eyes, bisected by a 

 median groove running to the base and having on either side a well marked 

 fovea at the upper margin of the eye, surface finely closely punctate; antennae 

 approximate, reaching the middle of the elytra, joint three is slightly longer 

 than two; thorax transverse, nearly quadrate, sides compressed at rear, making 



