NORTH AMERICAN BUPRESTID BEETLES 61 



Type, allotype, and paratopes— Cat. No. 40990, U. S. N. M. Para- 

 types also in collections of C. A. Frost, W. J. Chamberlin, and H. F. 

 Wickham. 



Described from 11 specimens (one type), 3 males and 5 females 

 collected at the type locality on Gambel's oak {Quercus utahensis 

 (A. de Candolle) Eyderberg; syn. Q. gambelii Nuttall) dur- 

 ing June and July, by E. A. Schwarz and H. S. Barber; two 

 females collected in the Chisos and Davis Mountains, Tex., on June 

 9 and 19, by H. A. Wenzel; and one male collected in the White 

 Mountains, July 18, along the Rio Ruidosa, at an elevation of about 

 0,500 feet, on the flowers of Rhus glabra Linnaeus, by C. H. T. 

 Townsend. 



No variation worthy of note has been observed in the examples 

 from Arizona, but the two paratypes from Texas differ from the 

 type in having the pronotum slightly more cupreous, and the scutel- 

 lum is sharply carinate. 



This species is allied to arcuatus Say, but differs from that species 

 in having the elytra sparsely, uniformly clothed with short, distinct, 

 Avhitish hairs. 



18. AGRILUS PARAMASCULINUS Champlain and Knull 

 Figure 12 



Affrilus paramaxculinus Champlain and Knull, Ent. News, vol. 34, 1923, 

 p. 274. — Chamberlin, Cat. Buprestidae, 1926, p. 76. 



Male. — Form of masculinus Horn, dark brown, with a cupreo- 

 aeneous tinge, and each elytron ornamented with an indistinct vitta 

 of short, sparsely placed white hairs. 



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

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

 and with a vague triangular depression behind the epistoma ; surface 

 obsoletely granulose, sparsely, coarsely punctate, slightly rugose, 

 the rugae irregular on the front but becoming longitudinal on the 

 occiput, and sparsely clothed on lower half with moderately long, 

 recumbent, whitish pubescence; epistoma slightly transverse between 

 the antennae, and very broadly, feebly emarginate or subtruncate in 

 front; antennae extending to middle of pronotum, serrate from the 

 fourth joint, and the outer joints about as wide as long; eyes large, 

 broadly oblong, and slightly more acutely rounded beneath than 

 above. 



Pronotum one-third wider than long, base and apex about equal 

 in width, and widest near middle; sides strongly, arcuately rounded 

 from apical angles to behind middle, then more strongly narrowed 

 to near the posterior angles, where they are slightly sinuate; when 

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



