NORTH AMERICAN BUPRESTID BEETLES 33 



slightly projecting, and truncate at apex. Prosternum sparsely, 

 coarsely punctate, finely granulose, and sparsely clothed with, short, 

 recumbent, whitish hairs; prosternal lobe rather narrow, strongly 

 declivous, and broadly rounded in front; prosternal process broad, 

 the sides feebly narrowed to behind the coxal cavities, then more 

 abruptly narrowed to the apex, which is acute. Posterior coxae with 

 the posterior margin broadly, arcuately emarginate, and the exterior 

 angle nearly rectangular. Tibiae slender, straight, the anterior and 

 middle pairs armed with a distinct, short tooth on the inner margin 

 at apex. Posterior tarsi distinctly shorter than the tibiae, and the 

 first joint as long as the following three joints united. Tarsal claws 

 similar on all feet, cleft near the middle, the outer tooth acute at apex, 

 the inner one slightly broader, turned inward and the tip sometimes 

 touching that of the opposite side. 



Female. — Differs from the male in having the front of head 

 broader, more cupreous, and the surface more finely punctate ; elytra 

 slightly wider at apical third than at base ; tibiae unarmed at apex ; 

 prosternum more sparsely punctate, the first two abdominal segments 

 not grooved at the middle, and the surface smoother. 



Length, 4—7 mm. ; width, 1.25-2 mm. 



Type locality. — " America." Present location of type unknown to 

 writer. 



Disti^ibution. — This species has a wide distribution, being found in 

 eastern Canada (Quebec, Ontario), and covering the entire eastern 

 half of the United States. Material has been examined from various 

 localities in the following States: Alabama, Arkansas, Connecticut, 

 District of Columbia, Delaware, Florida, Illinois, Indiana, Iowa, 

 Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, 

 Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Jersey, 

 New York, North Carolina, Ohio, Oklahoma, Pennsylvania, Ehode 

 Island, South Carolina, Tennessee, Texas, Vermont, Virginia, West 

 Virginia, and Wisconsin. 



Variations. — The species is remarkably constant except in size and 

 color. The pronotum is usually reddish cupreous, but varies to 

 green, aureous or aeneous, and rarely specimens are found in which 

 this part is very dark or nearly black. The elytra are usually black, 

 but occasionally a specimen will show a feeble bluish tinge. 



Host. — Attacks all varieties of blackberry, raspberry, and dew- 

 bevry {Rubus spp.) both wild and cultivated, causing elongate swell- 

 ings or galls on the canes, and frequently doing considerable damage 

 to cultivated varieties. It has been reported as breeding in rose, 

 which is somewhat doubtful, and Chamberlin (1926) records it from 

 willow (Salix sp.) and oak (Qioercus sp.), but these last two hosts 

 are probably recorded from wrongly identified specimens. 



