GoIeo2)terological Noticef<, VT. 831 



length, distinct and abundant on the pronotum, very sparse on the elytra but 

 denser in a transverse region near basal third, much longer near the sides, in 

 two sjwts near apical third and in two apical areas. Heixd distinctly less than 

 one-half as wide as the prothorax, subglobnlar, broader at base, strongly and 

 densely punctate, without interocular fovea, the eyes separated by a little less 

 than their own width; beak thick, parallel, subcylindrical, nearly straight, 

 three-fourths as long as the prothorax, feebly and gradually subdilated at apex, 

 stronglj-, closely punctate, somewhat rugose at the sides, not at all carinate 

 above; antennse rather thick, the basal joint of the funicle almost as long as 

 the next three. Prothorax one-fourth wider than long, the sides subparallel 

 and feebly arcuate to apical two-fifths, there minutely, angularly subtubercu- 

 late, thence strongly convergent and nearly straight to the apex, the latter 

 arcuate and one-half as wide as the base, which is transverse and feebly lobed 

 in the middle; disk strongly convex, strongl}', deeply and very densely punc- 

 tate, devoid of all trace of a modified median line. Scutellum small, rounded. 

 Elytra exclusive of the post-humeral prominences, one-fifth longer than wide 

 and fully two-fifths wider than the prothorax, strongly declivous behind in 

 profile from just behind the middle; apex evenly rounded; humeri rounded 

 and scarcely tumid; disk with feebly impressed series of coarse rounded 

 punctures, the intervals polished, sparsely and scarcely visibly punctulate. 

 Abdomen strongly but rather sparsely punctate, feebly pubescent ; legs strongly 

 sculptured and sj)arsely, coarsely pubescent. Length 5.0-6.8 mm. ; width 2.7- 

 3.7 mm. 



Arizona. 



Widely distributed in American collections under the name 

 Ghalcoderiims spinifer Boh. It however does not aa;ree in any 

 way with the description of that species, and is not at all related 

 to Chalcodermus. Four specimens. 



P. arinatus n. sp. — Less broadly oval, strongly convex, black, strongly 

 shining, the antennse dark rufous with the club darker; pubescence very short, 

 whitish, sparse and inconspicuous, intermingled on the elytra with a few 

 longer erect and coarse hairs of the same color disposed for the most part in 

 single series along the intervals but more numerous at the summit of the api- 

 cal declivity. Head scarcely two-fifths as wide as the prothorax, convex, 

 strongly, closely punctate, the eyes separated b}' nearly their own width; beak 

 short and stout, scarcely three-fourths as long as the prothorax, the upper sur- 

 face strongly, unevenly and not very densely punctate, not carinate and longi- 

 tudinally arcuate in profile, gradually and feebly dilated at apex; antennae 

 rather slender, inserted at ajjical fourtli, the basal joint of the funicle not quite 

 as long as the next three. Prothorax distinctly wider than long, the sides sub- 

 parallel, rather unevenly arcuate, more convergent near the apex, minutely 

 subprominent at apical two-fifths; apex arcuate, fully one-half as wide as the 

 base; disk coarsely, deeply and very densely punctate, evenly convex and 

 without a modified median line. FJytra distinctly longer than wide, much 

 less than twice as long as the prothorax and scarcely one-fourth \\'ider, the 



