NORTH AMERICAN BUPEESTID BEETLES 171 



Type localities. — Of aureus, Tuspan, Mexico; present location of 

 type unknown to writer. Of couesii, Arizona (near Fort Whipple) ; 

 type in Museum of Comparative Zoology. 



DISTRIBUTION 



Arizona: Seligman (H. F. Wickbain). Near Fort Whipple (Dr. E. Coues). 

 Mexico: Tuspan, Puebla (Salle). Guanajuato (Salle Duges). Tupataro in 



Guanajuato (Hoge). 

 New Mexico: Santa Fe (A. Fenyes, Cockerell). Jemez Springs (J. Woodgate). 



Albuquerque (C. Schaeffer)- Fort Wingate, September (Long Collection). 



Jemez Mountains, 7,500 feet (H. Wenzel). 



Variations. — This species shows very little variation, but occasion- 

 ally a specimen is found that is slightly cupreous, and the prehumeral 

 carina is more or less variable. Length 9 to 11 millimeters. 



Host. — The larval habits are unknown, but the adults have been 

 collected on Mentzelia nuda Gorry and Gray, by T. D. A. Cockerell. 



Chamberlin (1926) gives the type locality of couesii as Santa Fe, 

 New Mexico, but LeConte (1866) described the species from a single 

 example collected near Fort Whipple, Arizona, by Dr. E. Coues. 

 Agrilus perlucidus Gory from Mexico was supposed to be the same 

 as aureus Chevrolat, but it is a valid species and should not be con- 

 fused with aureus. 



54. AGRILUS CONCINNUS Horn 



Figure 38 



Agrilus concimius Horn, Trans. Amer. Ent. Soc, vol. 18, 1S91, pp. 310- 

 311. — Blatchley, Canad. Ent., vol. 52, 1920, p. 262. — Ohambeelin, Cat. 

 Buprestidae, 1926, p. 57. 



Male.— Form large, robust, not strongly attenuate posteriorly, but 

 rather strongly flattened above; head cupreous, and more or less 

 bronzy; pronotum cupreous, margined laterally bronzy green, the 

 median depression black, and on each side of which the surface is 

 strongly reddish; elytra dull olivaceous bronze or black, with a 

 bronzy green vitta extending from the humeral angle to apex; be- 

 neath brownish black, with a more or less olivaceous and aeneous 

 reflection, and more shining than above. 



Head with the front rather wide, top and bottom about equal in 

 width, lateral margins nearly parallel to each other, a broad, shallow, 

 longitudinal depression on anterior half, a broad, shallow, triangular 

 depression slightly above the middle of front, extending to the lat- 

 eral margins and obliquely backward to the occiput, and in the middle 

 of which is a narrow, longitudinal groove; surface coarsely, irregu- 

 larly punctate on the front, becoming strongly rugose on the occiput, 

 but without conspicuous pubescence; epistoma transverse between 



2305—28 12 



