A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



117 



This species varies in coloration from bronzy green to purplish 

 black, the head uniformly bronzy green to reddish cupreous with only 

 the occiput bronzy green, and the legs from bluish black to reddish 

 cupreous or bronzy green. The purplish-black vittae on the elytra 

 are often reduced to a narrow, elongate spot behind the middle, and 

 1he vittae becoming indistinct on the purplish-black specimens. The 

 sides of the pronotum are usually rounded, parallel or sinuate at the 

 middle, but occasionally a specimen has the pronotum widest near 

 the apex, with the sides obliquely converging posteriorly. The inter- 

 mediate segments of the antenna are sometimes not quite twice as 

 wide as long. The eighth tergite of the male type is missing, but in 

 other male specimens it is densely granulose, sparsely, coarsely punc- 

 tate, and coarsely dentate and slightly emarginate at the apex. The 

 length is from 6 to 7.5 mm. 



(45) Chrysobothris purpureovittata Horn 



(Fig. 45; fig. 117, 0) 



Chrusobothris purpureovittata Horn, 1886, Amer. Ent. Soc. Trans. 13: 72, 76-77, 

 pi. 2, figs. 25-29 ; Kerremans, 1892, Soc. Ent. de Belg. Mem. 1 : 218 ; Horn, 

 1894, Calif. Acad. Sci. Proc. (ser. 2) 4: 328; Schaeffer, 1904, N. Y. Ent. 

 Soc. Jour. 12: 206-207; Blatchley, 1910, Coleoptera of Indiana, pp. 788, 

 789; Chamberlin, 1926, Cat. Buprestidae North Amer., p. 167; Obenberger, 

 1934, in Junk (pub.), Coleopt. Cat., pt. 132, p. 646. 



Figure 45. — Anterior tibia of male (A), clypeus (B), and last visible abdominal 

 sternite of male (C) and of female (D) of Chrysobothris purpureovittata. 



Male. — Moderately elongate, moderately convex above, rather strongly shining, 

 bronzy green, with a faint violaceous tinge, and each elytron ornamented with 

 a broad, sinuate, purplish-black vitta extending from base to near tip ; beneath 

 bronzy green, with a distinct cupreous or purplish tinge, and more strongly 

 shining than above. 



Head bronzy green in front, becoming reddish cupreous on occiput, with a 

 very narrow longitudinal carina on occiput and a vague chevron on vertex ; 

 front slightly convex ; surface sparsely, coarsely, shallowly punctate, sparsely 

 clothed with short, inconspicuous hairs, intervals densely granulose ; clypeus 

 rather deeply, broadly, arcuately emarginate in front, broadly rounded on each 



