A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 195 



emarginate at apex, without a submarginal ridge, lateral margins not serrate, 

 but interrupted at apical third; eighth tergite subtruncate at apex, densely 

 granulose, coarsely, sparsely punctate, but not longitudinally carinate. Pro- 

 sternum smooth at middle, densely, coarsely punctate in front and at sides, 

 sparsely clothed with long, recumbent, whitish hairs; anterior margin sub- 

 truncate, without a median lobe. Anterior femur with a large, short, rather 

 acute tooth, which is coarsely dentate on outer margin. Anterior and middle 

 tibiae arcuate, the former with a very small, acute tooth at apex, the latter 

 with a series of small teeth on inner margin ; posterior tibia straight. 

 Length 11.5 mm., width 4.5 mm. 



Eedescribed from the male lectotype, No. 3445, in the Academy 

 of Natural Sciences of Philadelphia. 



Female. — Differing from the male in having the front of the head uniformly 

 purplish brown, more coarsely, sparsely punctate, with numerous irregular, 

 smooth callosities, and the intervals smooth, the antenna uniformly purplish 

 brown, the prosternum more sparsely pubescent, the last visible sternite more 

 elongate, tridentate at apex, with the median toOth frequently longer than 

 outer teeth, and the anterior and middle tibiae unarmed. 



Type locality. — Arizona, no definite locality. 



DISTRIBUTION 



From material examined : 



Arizona; No definite locality, type material (H. K. Morrison). Sabino Canyon, 

 November 1923 (G. Hofer). Huachuca Mountains (C. Schaeffer). Pal- 

 meriee, Cochise County, June 15 (Biedermann). Carr Canyon, Huachuca 

 Mountains, August 1905 (H. Skinner). 



Chamberlin (1926) records the species from Gallinas Canyon, 

 New Mexico. 



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

 collected on Mexican blue oak (Querous oblongifolia Torrey) in 

 Arizona by George Hofer. 



Very little variation was observed in the specimens examined ex- 

 cept in length, which ranges from 9.5 to 13 mm. 



Horn (1886) described the species from material collected by 

 H. K. Morrison in Arizona, and states that he did not find any 

 differences in the tibia of the two sexes, but in the males the anterior 

 tibia is armed with a very small tooth at the apex, and the middle 

 tibia with a series of small teeth on the inner margin, whereas in 

 the female the anterior and middle tibiae are unarmed. 



(86) Chrysobothris costifrons Waterhouse 



(Fig. 82 ; fig. 123, C) 



Chrysobothris aerea Horn (not Chevrolat), 1S86, Amer. Ent. Soc. Trans. 



13: 103, 104-105, pi. 6, figs. 173-177; Chamberlin, 1926, Cat. Buprestidao 



North Amer., p. 137 (part) ; Leng and Mutchler, 1933, Cat. Coleopt, sup. 



2-3, p. 29. 

 Chrysobothris costifrons Waterhouse, 1887, Biol. Cent.-Amer., Coleopt., v. 3, 



pt. 1, p. 45, pi. 3, fig. 19, 1889, p. 184 ; Kerremans, 1892, Soc. Ent. de Belg. 



Mem. 1 : 210 ; Schaeffer, 1909, Brooklyn Inst. Arts and Sci., Mus., Sci. Bui. 



1:376; Leng, 1920, Cat. Coleopt., p. 182; Obenberger, 1934, m Junk 



(pub.), Coleopt. Cat., pt. 132, p. 617. 



