NORTH AMERICAN BUPRESTID BEETLES 205 



68. AGRILUS ORNATULUS Horn 



Figure 49 



Agrilus ornatulus Horn, Trans. Amer. Ent. Soc, vol. 18, 1891, pp. 319-320, 

 pi. 8, fig. 4. — Chittenden, U. S. Dept. Agric, Div. Ent., Bull. 22, new ser., 

 1900, p. 68.— Frost and Weiss, Canad. Ent., vol. 52, 1920, p. 222 — 

 Chamberlin, Cat. Buprestidae, 1926, p. 73. 



Female. — Small, robust, scarcely narrowed posteriorly, and feebly 

 flattened; head uniformly brownish cupreous; pronotum and elytra 

 piceous, the former subopaque, and the latter moderately shining, 

 with a more or less distinct bluish or violaceous tinge (humeri 

 strongly aeneous), and ornamented with distinct pubescent designs; 

 beneath piceous, with a distinct bronzy reflection. 



Head with the front rather wide, strongly convex, equal in width 

 at bottom and top, the lateral margins parallel to each other, and 

 without a distnict median groove; surface finely, densely granulose, 

 sparsely, coarsely punctate, somewhat longitudinally rugose on occi- 

 put, and without distinct pubescence; epistoma slightly transverse 

 between the antennae, clypeal suture elevated, and deeply, broadly, 

 angularly emarginate in front ; antennae extending to middle of pro- 

 notum, serrate from the fourth joint, and the outer joints slightly 

 wider than long ; eyes rather small, narrowly oblong, broadly rounded 

 above, and acutely angulated beneath. 



Pronotum nearly one-third wider than long, slightly wider at apex 

 than at base, and widest near apical third; sides broadly rounded 

 from apical angle to behind middle, then more obliquely narrowed to 

 the posterior angle, which is slightly projecting and acute; when 

 viewed from the side the marginal and submarginal carinae are nearly 

 straight, widely separated anteriorly, and connected to each other 

 near the base ; anterior margin strongly sinuate, with the median lobe 

 broadly rounded ; base nearly transversely truncate, feebly emarginate 

 at middle of each elytron, and the median lobe very broadly, but 

 feebly rounded in front of scutellum ; disk moderately convex, feebly, 

 narrowly concave along the sides, and without median depressions or 

 prehumeral carinae; surface densely, finely granulose, obliquely 

 rugose at middle, longitudinally rugose toward the sides, with a few 

 fine punctures between the rugae, and clothed with short, recumbent, 

 silvery white pubescence, the hairs indistinct and widely separated 

 on disk, but becoming denser in the concave area along lateral 

 margins. Scutellum strongly, transversely carinate, and the surface 

 finely granulose or reticulate. 



Elytra wider than pronotum at base, and equal in width at base 

 and behind the middle ; sides nearly parallel for a short distance be- 

 hind base, broadly, arcuately constricted in front of middle, broadly, 

 arcuately expanded behind the middle, then obliquely narrowed to 



