ART. 27 NEW BUPRESTID BEETLES FISHER 29 



sternal process moderately wide, the sides feebly narrowed to the 

 apex, which is acute. Tibiae slender, straight, the anterior and mid- 

 dle pairs armed with a very small tooth on inner margin at apices. 

 Posterior tarsi slightly shorter than tibiae, the first joint as long as 

 the following three joints united. Tarsal claws nearly similar on 

 all feet, cleft near the middle, the inner tooth broad, shorter than 

 outer one, and not turned inward. 



Female. — Differs from the male in having the head uniformly 

 cupreous, the prosternum without long, erect hairs, and the tibiae 

 unarmed at apices. 



Length, 4.5-5 mm; width, 1.1-1.25 mm. 



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



r^^e.— U.S.N.M. No. 49566. 



Paratype.- — In the H. E. Hinton collection. 



Remarks. — Described from a male and a female (male type) col- 

 lected at the type locality at an altitude of 3,960 feet, during July 

 1932, )jy H. E. Hinton, and a male paratype collected at Real de 

 Arriba, Mexico, D.F., at an altitude of 6,300 feet, during 1932 by 

 the same collector. 



This species is allied to signatus Waterhouse, but it differs from 

 that species in having the elytra bluish black, with the basal halves 

 along the lateral margins reddish cupreous, and in having a different 

 arrangement of the white pubescent markings on the elytra. 



AGRILUS SEMIOPACUS, new species 



Male. — Robust, feebly attenuate posteriorly, vaguely convex above, 

 feebly shining, uniformly greenish or bluish black above and beneath. 



Head with the front wide, nearly flat, about equal in width at top 

 and bottom, lateral margins parallel, without distinct depressions; 

 surface coarsely, feebly, irregularly rugose, rather densely, coarsely 

 punctate, rather densely clothed with short, semierect, white hairs; 

 epistoma rather narrow between the antennae, not elevated, but 

 broadly, arcuately emarginate in front; antenna short, serrate from 

 the fourth joint, the outer joints rather compact and about as long 

 as wide ; eyes large, equally rounded above and beneath. 



Pronotum one fourth wider than long, subequal in width at base 

 and apex, widest at middle; sides feebly, arcuately rounded from 

 apical angles to posterior angles, which are rectangular ; when viewed 

 from the side the marginal carina feebly sinuate, and the submarginal 

 carina only vaguely indicated ; anterior margin slightly sinuate, with 

 the median lobe feebly produced and broadly rounded ; base feebly, 

 broadly, arcuately emarginate on each side, with the median lobe 

 moderately produced and broadly rounded; disk strongly convex, 

 with a broad, rather deep, oblique depression on each side along 

 lateral margin, broadly elevated on each side near posterior angle. 



