NORTH AMERICAN BUPRESTID BEETLES 169 



Agrilus couesii LeConte, Proc Acad. Nat. Sci. Phila., vol. 18, 1866, p. 

 384.— Crotch, Proc. Acad. Nat. Sci. Phila., vol. 25, 1873, p. 94.— 

 LeConte, Proc. Acad. Nat. Sci. Phila., vol. 25, 1873, p. 333.— Horn, 

 Trans. Auier. Ent. Soc, vol. 18, 1891, p. 309, pi. 8, fig. 1.— Cockerell, 

 Journ. N. Y. Ent. Soc, vol. 5, 1897, p. 150; New Mex. Exp. Sta., Bull. 

 28, 1898, p. 152. — Chittenden, U. S. Dept. Agric, Div. Ent., new ser., 

 Bull. 22, 190O, p. 67.— Schaeffer, Brooklyn Inst. Mus., Sci. Bull. vol. 1, 

 no. 6, 1905, p. 131.— Fall, Ent. News, vol. 17, 1906, p. 168.— Fall and 

 Cockerell, Trans. Amer. Ent. Soc, vol. 33, 1907, p. 180. — Frost and 

 Weiss, Canad. Ent., vol. 52, 1920, p. 210. 



Female. — Form elongate, rather slender, and strongly flattened 

 above; bronzy green, with the median part of pronotum, longi- 

 tudinal costae, sutural margins, and sutural depression of elytra 

 posteriorly, more or less brownish or purplish black ; beneath bronzy 

 green, and more shining than above. 



Head with the front narrow, slightly wider at top than at bottom, 

 lateral margins feebly, arcuately expanded at middle, broadly con- 

 cave, more deeply and broadly depressed at middle of front, an 

 oblong, irregular elevation on each side of middle behind base, and 

 a deep transverse groove behind the epistoma extending to the lateral 

 margins; surface densely and very coarsely punctate on the front, 

 becoming somewhat rugose on the occiput, and without distinct 

 pubescence; epistoma slightly transverse between the antennae, and 

 broadly, deeply, arcuately emarginate in front; antennae short, not 

 extending to middle of pronotum, serrate from the fourth joint, and 

 the outer joints wider than long; eyes large, broadly oblong, and 

 slightly more broadly rounded beneath than above. 



Pronotum one-third wider than long, and about equal in width at 

 base and apex ; sides nearly parallel from base to near apex (slightly 

 sinuate near base), then arcuately narrowed to the apical angles; 

 when viewed from the side the marginal carina is strongly arcuate 

 anteriorly, the submarginal carina nearly straight, obsolete anteriorly, 

 and connected to the marginal carina near base; anterior margin 

 strongly sinuate, with the median lobe broadly rounded; base trans- 

 versely truncate to middle of each elytron, then extending obliquely 

 backward to the scutellum, in front of which it is broadly truncate ; 

 disk moderately convex, with a broad, deep median depression ex- 

 tending from base to apex, a broad, rather deep depression on each 

 side along lateral margin at middle, and a feebly elevated, straight 

 prehumeral carina extending from base to basal third; surface 

 sparsely, coarsely punctate, becoming irregularly, longitudinally 

 rugose at sides and in median depression, and broadly, densely clothed 

 at the sides with long, recumbent, whitish pubescence, with a few 

 hairs of the same color in the median depression. Scutellum not 

 transversely carinate, but the surface smooth, except at the middle, 

 where it is densely punctate and slightly depressed. 



