NORTH AMERICAN BUPRESTID BEETLES 145 



acutely rounded and more coarsely serrulate, and the pubescent spots 

 less distinct. 



Horn (1891, p. 303) writes that " LeConte (1859) admits both 

 granulatus and quadriguttatus, but it is very clear that he has used 

 the female as his type of the former and a male for the latter." 

 This statement is incorrect , as there are only four examples in the 

 LeConte collection under granulatus (including quadriguttatus) , all 

 of which are females. 



45. AGRILUS NIVEIVENTRIS Horn 



Figure 32 



Agrilus niveiventris Horn, Trans. Amer. Ent. Soc, vol. 18, 1891, pp. 304- 

 305 ; Proc. Calif. Acad. Sci., vol. 4, ser. 2, 1894, p. 328.— Fall, Ent. News, 

 vol. 5, 1894, p. 98.— Wickham, Bull. Lab. Nat. Hist., State Univ. Iowa, 

 vol. 4, no. 3, 1898. p. 305.— Fall, Calif, Acad. Sci., Occasional Papers, 

 no. 8, 1901, pp. 23, 120.— Wickham, Bull. Lab. Nat. Hist., State Univ. 

 Iowa, vol. 5, no. 3, 1902, p. 269 (probably politus) . — Fall, Ent. News, 

 vol. 17, 1906, p. 168.— Woodworth, Guide to Calif. Ins., 1913, p. 194 — 

 Burke, Journ. Econ.' Ent., vol. 10, 1917, p. 331 (part). — Frost and 

 Weiss, Canad. Ent., vol. 52, 1920, p. 247 (part). — Chamberlin, Journ. 

 N. Y. Ent. Soc, vol. 32, for 1924 (1925) p. 193 (this is populi).— Essig, 

 Ins. Western North Amer., 1926, p. 403 (part). — Chamberlin, Cat. 

 Buprestidae. 1920, p. 71 (part). 



Female. — Form moderately robust, feebly shining or subopaque, 

 and slightly flattened above ; head bronzy brown ; pronotum aeneous, 

 with a greenish tinge; elytra bronzy brown, with a feeble reddish 

 cupreous tinge; beneath bronzy brown, with a more or less cupreous 

 reflection, and densely efflorescent. 



Head with the front moderately wide, feebly convex, slightly 

 wider at bottom than at top. without distinct depressions, lateral 

 margins arcuately expanded at middle, and with a feeble, narrow 

 groove extending from occiput to middle of front ; surface coarsely, 

 densely punctate, feebly rugose, and rather densely clothed with long, 

 recumbent, whitish pubescence on lower half; epistoma strongly 

 transverse between the antennae, and very broadly, deeply, arcuately 

 emarginate in front; antennae extending to about middle of prono- 

 tum. serrate from the fourth joint, and the outer joints slightly 

 longer than wide; eyes large, elongate, and about equally rounded 

 above and beneath. 



Pronotum about one-half wider than long, base and apex about 

 equal in width, and widest at middle ; sides rather strongly, arcuately 

 rounded from apical angles to near base, where they are nearly 

 parallel to each other, and the posterior angles rectangular; when 

 viewed from the side the marginal carina is strongly sinuate, the 

 submarginal carina feebly sinuate, the two carinae widely separated 



