NORTH AMERICAN BUPRESTID BEETLES 53 



separate these two species from cabinet specimens, but in the field 

 their habits are quite distinct. In arhuti the head is not quite so 

 strongly convex in front, with the surface more strongly rugose and 

 coarsely punctured, and the lateral margins more parallel to each 

 other, the anterior margin of pronotum more strongly sinuate, and 

 the median lobe feebly, broadly rounded, the pubescence on abdomen 

 and presternum shorter, and the inner tooth of anterior claws dis- 

 tinctly broader toward the apex. 



13. AGRILUS ANGELICUS Horn 

 Figure 10 



Agrilus angelicas Horn, Trans. Amer. Eut. Soc. vol. IS, 1891, p. 298.— 

 Fall, Eut. News. vol. 5, 1894, p. 98; Calif. Acad. Sci., Occasional 

 Papers, no. 8, 1901, p. 120; Ent. News, vol. 17, 1906, p. 168.— Doane, 

 Journ. Econ. Ent, vol. 5, 1912, p. 347. — Frost, Canad. Ent., vol. 44, 

 1912, p. 246. — Woodworth, Guide to California Insects, 1913, p. 195 — 

 Burke, U. S. Dept. Agric, Bull. 437, 1917, pi. 8, fig. 4, pi. 9, fig. 1 (no 

 text) ; Journ. Econ. Ent., vol. 10, 1917, p. 330. — Herbert, Journ. Econ. 

 Ent., vol. 12, 1919, p. 337.— Cushman, Proc. U. S. Nat. Mus., vol. 55, 

 no. 2284, 1919, p. 535 (parasite). — Rohwer, Proc. Ent. Soc. Wash., 

 vol. 2*1, 1919, pp. 4-8 (parasites). — Frost and Weiss, Canad. Ent., 

 vol. 52, 1920, pp. 207, 247.— Herbert, Journ. Econ. Ent., vol. 13, 1920, 

 p. 363.— Burke, Journ. Econ. Ent., vol.. 13, 1920, pp. 379-384.— 

 Mutchler and Welss. N. J. Dept. Agric, Bur. Statistics and Inspection, 

 Circ. 48, 1922, p. 7.— Felt, Man. Tree and Shrub Ins., 1924, pp. 182, 

 186-187.— Essie. Ins. Western N. Amer.. 1926. p. 403. figs. 278-279.— 

 Chamberlin, Cat. Buprestidae, 1926, pp. 48-49. 



Agrilus politus Woodworth (not Say), Guide to California Insects, 1913, 

 p. 194 (part). — Childs, Monthly Bull. Calif. State Comm. Hort., vol. 

 3, 1914, pp. 150-155, figs. 54-56. — Essig, Injurious and Beneficial Ins. 

 Calif., 1915, p. 234, fig. 223 (part).— Chamberlin. Ent. News, vol. 28, 

 1917, p. 168 (part).— Frost and Weiss, Canad. Ent.. vol. 52, 1920, 

 p. 220 (part). 



Agrilus arcuatus Chamberlin (not Say), Cat. Buprestidae. 1926. p. 52 

 (part, California records). 



Female. — Form moderately elongate, rather robust, feebly flat- 

 tened above, and moderately shining; head brownish cupreous; pro- 

 notum cupreous, with a feebly purplish tinge; elytra dark bronzy 

 brown; beneath brownish cupreous, and more shining than above. 



Head with the front broad, feebly convex, and wider at top than 

 at bottom, the lateral margins obliquely expanded from bottom to 

 top, and with a feeble, broad, longitudinal groove extending from 

 occiput to epistoma, the groove more deeply depressed on the vertex : 

 surface finely, sparsely punctate, irregularly rugose on the front, 

 becoming longitudinally rugose on the occiput, and clothed with a 

 few inconspicuous hairs behind the epistoma; epistoma strongly 

 transverse between the antennae, feebly elevated, and with a semi- 



