132 PEOCEEDINGS OF THE NATIONAL. MUSEUM vol. 65 



DICERCA DIVARICATA (Say) 



Buprestis divaricata Say, Journ. Acad. Nat. Sci., Phila., vol. 3, 1823, 



pp. 163-164. 

 Dicerca duMa Melsheimek, Proc. Acad. Nat. Sci., Phila., vol. 2, 1844, 



p. 142. 

 Dicerca aurichalcea Melsheimer, Proc. Acad. Nat. Sci., Phila., vol. 2, 1844, 



pp. 142-143. 

 Dicerca parumpunctata Melsheimer, Proc. Acad. Nat. Sci., Phila., vol. 2, 



1844, p. 143. 



Male. — Form more broadly elongate than tuberculata^ attenuate 

 behind, and moderately convex; above aeneo-cupreous, with the tips 

 of elytron usually more reddish, and the surface with obscure and 

 blackish elevations; beneath slightly more reddish-cupreous than 

 above. 



Head feebly convex, and obsoletely concave at middle; surface 

 coarsely and very densely punctato-rugose, the punctures somewhat 

 irregular and confluent, with the bottoms bright green, sparsely 

 clothed with long, inconsj)icuous hairs; eyes oblong, about two times 

 as long as wide, and feebly converging above ; epistoma broadly, and 

 rather deeply arcuately emarginate in front. Pronotum nearly two 

 times as wide as long, widest near middle, slightly narrower in front 

 than behind; sides strongly obliquely expanded from apex to near 

 middle, where they are strongly rounded to basal third, then nearly 

 parallel to. the posterior angles, which are nearly rectangular, anterior 

 margin feebly arcuately emarginate, with a broadly rounded median 

 lobe; base feebly bisinuate; disk obsoletely sulcate at middle, more 

 deeply impressed anteriorly, and with a deep prescutellar fovea, and 

 on each side, there is usually a more or less oblique impression behind 

 the middle; surface coarsely and rather densely punctate, the punc- 

 tures somewhat confluent, irregularly placed, and forming irregular 

 smooth elevations. Scutellum small, subquadrate, and finely strio- 

 late. Elytra wider than pronotum at base, feebly rounded behind 

 humeri, sinuate at basal third, then strongly arcuately attenuate to 

 near the tips, where they are parallel and slightly divergent, the 

 apex subtruncate, with the sutural angle acutely produced; surface 

 rather even, with two short logitudinal costae at tlie apex of each 

 elytron, the exterior one being the longer, striato-punctate, the striae 

 not deeply impressed, and becoming obsolete toward the sides, with 

 the punctures coarse and well separated, intervals coarsely and ir- 

 regularly punctate, the punctures in some areas confluent and form- 

 ing areolae, which are not very well defined. Abdomen beneath 

 coarsely and rather densely punctate, the punctures irregularly 

 placed, and with the posterior margins not very well defined, and 

 sparsely clothed with long, fine recumbent hairs; intervals smooth; 

 first segment very broadly and rather deeply concave at middle; last 



