NEW BUPRESTID BEETLES — FISHER 335 



depressed on each side, and densely, uniformly punctured, and the 

 fifth interstrial spaces on the elytra not elevated. 



ACIVIAEODERA UNICOLOK, new species 



Narrowly elongate, subcylindrical, strongly convex above, broadly 

 rounded in front, strongly narrowed behind middle, moderately shin- 

 ing, uniformly coppery brown, with a faint aeneous tinge on underside 

 of body. 



Head slightly convex in front, transversely depressed behind clyp- 

 eus, ccyarsely, confluently ocellate-punctate, sparsely clothed with 

 short, broad, erect, white hairs; clypeus broadly, deeply, arcuately 

 emarginate in front. Antenna extending to apical third of pronotum ; 

 segment 1 elongate, as long as following three segments united; seg- 

 ment 2 globose : segments 3-5 narrower, slightly longer than wide, and 

 subequal in length to each other ; segments 6-10 compact, twice as wide 

 as long; segment 11 round. 



Pronotum one and one-half times as wide as long, narrower at apex 

 than at base, widest at middle ; sides broadly rounded, with the mar- 

 gins narrow and scarcely visible from above ; disk strongly, uniformly 

 convex, without distinct depressions, but with a deep, elongate fovea 

 on each side along base near posterior angle ; surface deeply, coarsely, 

 densely punctate at middle, deeply, confluently alveolate-punctate or 

 arcuately rugose toward sides, and sparsely clothed with short, broad, 

 erect, white hairs. 



Elytra strongly convex, deeply transversely depressed along base at 

 middle, at base subequal in width to pronotum at base ; sides slightly 

 constricted in front of middles, then arcuately converging to the tips, 

 which are conjointly broadly rounded ; lateral margins feebly serrate 

 behind middle. Surface rather deeply striately punctate, the punc- 

 tures in the striae large, separated from one another by about one- 

 half their own widths; interstrial spaces on sutural regions flat and 

 twice as wide as the strial punctures, wider and slightly convex toward 

 sides, rather densely, finely, regularly, punctate, with a short, broad 

 erect, white hair arising from each puncture. 



Abdomen beneath densely, finely, shallowly punctate, densely 

 clothed with short, rather broad, erect, white hairs; intervals smooth; 

 last visible sternite broadly rounded at apex, without a subapical ca- 

 rina. Prosternum coarsely, sparsely, rather deeply punctate at middle, 

 coarsely ocellate-punctate at sides, nearly glabrous; anterior margin 

 truncate. 



Length 5.5-6 mm., width 1.75-2 mm. 



Type locality. — Tehuantepec, Oaxaca, Mexico. 



Type and paratype.—U.S.'NM. No. 58788. 



S18706 — 49 2 



