166 BULLETIN 14 5, UNITED STATES NATIONAL MUSEUM 



without any doubt made from a male, as LeConte writes that it 

 differs from anxius and gravis by the front of the head being 

 pubescent/ which is a male sexual character. Agrilus gravis (No. 8 

 in the anatius series) is a female of torpidms and agrees with his 

 description. 



52. AGRILUS CAVATUS Chevrolet 



Figure 36 



Agrilus cavatus Chevrolat, Silbermann's Revue Entomol., vol. 5, 1838, p. 

 99. — Hoen, Eut. Aruer., vol. 3, 1887, p. 145. — Waterhouse, Biol. Centr.- 

 Amer. Coleopt., vol. 3, pt. 1, 1889, p. 69. — Horn, Traus. Amer. Ent. Soc„ 

 vol. 18, 1891, p. 310.— Duges, La Naturaleza, ser. 2, vol. 2, 1891, p. 22, 

 pi. 2, fig. 33.— Fall, Ent. News, vol. 17, 1906, p. 16S.— Chamuerlin, 

 Cat. Buprestldae, 1926, p. 56. 



Agrilus texanus Crotch, Proc. Acad. Nat. Sci. Phila., vol. 25, 1873, p. 94. 



Male. — Form elongate, strongly attenuate posteriorly, rather 

 strongly flattened above, and of a reddish or bronzy cupreous color; 

 beneath aeneous, becoming more reddish cupreous posteriorly, and 

 more shining than above. 



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

 bottom, lateral margins nearly parallel from top to middle, then 

 obliquely narrowed to the bottom, broadly and very deeply excavated, 

 forming two large elevations at lower inner margin of eyes, the 

 excavation broadly rounded, extending to the lateral margins, and 

 posteriorly to the occiput, with a deep, longitudinal depression ex- 

 tending from it to the epistoma, and with a deep transverse groove 

 behind the epistoma; surface very coarsely, sparsely punctate in 

 front, but the punctures becoming more or less confluent posteriorly, 

 and clothed with long yellowish hairs in the longitudinal depression 

 behind the epistoma; epistoma rather narrow between the antennae, 

 and broadly, deeply, arcuately emarginate in front ; antennae extend- 

 ing to about middle of pronotum, serrate from the fourth joint, 

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

 oblong, and distinctly more broadly rounded beneath than above. 



Pronotum nearly one-half wider than long, about equal in width 

 at base and apex, and widest near the middle ; sides feebly, arcuately 

 rounded ; when viewed from the side the marginal carina is strongly 

 sinuate, the submarginal carina nearly straight, the two carinae 

 rather widely separated anteriorly, and connected to each other 

 at the base; anterior margin feebly sinuate and the median lobe 

 scarcely developed; base transversely truncate to middle of each 

 elytron, then extending obliquely backward to the scutellum, in 

 front of which it is broadly subtruncate; disk moderately convex, 

 with a broad, deep median depression, wider behind than in front, 

 and extending from base to apex, a broad, deep depression on each 



