1901.] PHYTOPHAGOUS COLEOPTEEA. 155 



Head sparingly but distinctly punctured, longitudinally sulcate 

 between the eyes, the latter nearly divided by the intruding portion 

 of the head, clypeus more closely punctured, labruui fulvous ; 

 antennae fulvous, the terminal joints slightly darker, the basal 

 joint stained with black above, the third joint very small, the fifrh 

 and the following two joints transversely widened, terminal joints 

 of equal width, not dilated ; thorax with the middle portion raised 

 into two high round humps, each of which has a shght transverse 

 sulcus anteriorly, the sides with two other strong and round 

 tubereles, the entire surface shining, finely and sparingly punctured, 

 the basal lobe broadly but not deeply triangularly emarginate; 

 scutellum transversely subquadrate, smooth ; elytra with a high 

 conical tubercle at the middle of the base, a smaller one near the 

 suture before the middle, an oblique ridge from the shoulders to 

 the suture, where it ends in another high tubercle below the middle, 

 this ridge sends off two short transverse costse below the shoulders, 

 the latter are hkewise highly tubercuhform, near the apex two 

 more strong tubercles are placed, and the preceding space shows 

 some other short longitudinal ridges ; below closely punctured, the 

 abdomen with two small elevations at the sides; the legs compara- 

 tively long, the apex of the anterior tibiae produced into a tooth, 

 the tarsi broad, clothed with fulvous pubescence below ; pygidium 

 finely and closely punctured, shining, the base with two obsolete 

 fovese. 



Hab. Brazil, Goyaz. 



There will not be much difficulty in distinguishing this species ; 

 I know of no other similarly structured : the eyes are nearly divided 

 in two halves, and the entire insect is of a deep and shining black 

 colour and finely punctured ; the tibiae are elongate and distin- 

 guished by the tooth at the apex of the anterior pair. 



Chlamts deteollei, sp. n. (Plate XIV. fig. 3.) 



Subquadrate, broad and robust, below flavous, above fulvous, 

 opaque, the posterior portion of the thorax moderately elevated, 

 rounded and limited behind by a semierescent of six tubercles, 

 anteriorly strongly elevate-reticulate ; elytra with about ten high 

 fiavous tubercles and a high short transverse curved ridge at the 

 middle ; abdomen with a feeble callosity at the sides. 



Length 6 millim. 



Head flat, finely rugose, flavous, the vertex and the base of the 

 antennae with a small obscure fulvous spot, antennae entirely 

 flavous ; thorax flavous, with some small fulvous spots here and 

 there, the middle portion raised into a rounded elevation and sur- 

 rounded by a crescent of six strougly raised tubercles, which form 

 a ridge at the posterior and lateral portion, the included space 

 darker than the rest of the surface and strongly elevate-reticulate, 

 which extends to the anterior margin, the sides simply rugosely 

 punctate ; scutellum with the apex strongly pointed ; elytra simply 

 tuberculate, flnely punctured, the punctures dark brown, as well 

 as some of the tubercles, these placed as follows: — a large one at 



