20 PROCEEDINGS OF THE NATIONAL MUSEUM vol.82 



Abdomen beneath densely, coarsely marked with transverse, cren- 

 ulate lines, rather densely, coarsely punctate, and rather densely, 

 uniformly clothed with short, recumbent, white hairs; first segment 

 convex at middle, the suture between the first and second segments 

 not indicated at the sides; last segment broadly rounded at apex; 

 vertical portions of the segments not conspicuously pubescent; py- 

 gidium sparsely, coarsely punctate, longitudinally carinate, but the 

 carina not projecting at apex. Prosternum densely, coarsely granu- 

 lose, sparsely punctate, and sparsely clothed with moderately long, 

 semierect, white hairs ; prosternal lobe broad, strongly declivous, and 

 broadly subtruncate or vaguely emarginate in front; prosternal 

 process rather wide, the sides feebly, obliquely narrowed to behind 

 the coxal cavities, then strongly narrowed to the apex, which is 

 acute. Tibiae slender and unarmed at apices. Posterior tarsi about 

 three fourths as long as the tibiae, the first joint as long as the fol- 

 lowing two joints united. Tarsal claws similar on all feet, cleft 

 near the middle, the inner tooth broad, shorter than outer one, and 

 not turned inward. 



Length, 5.75 mm ; width, 1.25 mm. 



Tyfc locality. — Tejupilco, Mexico, D.F. 



ry^e.—U.S.N.M. No. 49561. 



Remarks. — Described from a unique female collected at the type 

 locality at an altitude of 3,960 feet, during July 1932, by H. E. 

 Hinton. 



This species is allied to chalcoderes Chevrolat, but it differs from 

 (hat species in having the pronotum strongly convex, longitudinally 

 depressed at the middle, the surface coarsely rugose, with the rugae 

 more or less interrupted, and with the prehumeral carinae only 

 feebly indicated. 



AGRILUS AZTECUS, new species 



Male. — Rather robust, strongly flattened above, strongly shining, 

 uniformly cupreous above and beneath, with the head feebly aureous 

 in front, and each elytron ornamented with three vague, yellowish- 

 white, pubescent spots. 



Head with the front broad, feebly convex, distinctly wider at top 

 than at bottom, lateral margins strongly, obliquely converging from 

 top to bottom, and broadly, deeply, longitudinally depressed from 

 epistoma to occiput; surface coarsely, deeply, irregularly rugose 

 posteriorly, coarsely, deeply, confluently punctate anteriorly, and 

 sparsely clothed with long, recumbent, yellowish-white hairs; epis- 

 toma rather narrow between the antennae, feebly elevated, and 

 broadly, deeply, arcuately, emarginate in front; antenna rather 

 short, serrate from the fifth joint, the outer joints strongly triangu- 

 lar, and about as wide as long; eyes large, strongly oblong, and 

 equally rounded above and beneath. 



