The Collaborative International Dictionary of English v.0.48:

Buprestidan \Bu*pres"ti*dan\, n. [L. buprestis, Gr. ?, a
   poisonous beetle, which, being eaten by cattle in the grass,
   caused them to swell up and and die; ? ox, cow + ? to blow
   up, swell out.] (Zool.)
   One of a tribe of beetles, of the genus Buprestis and
   allied genera, usually with brilliant metallic colors. The
   larv[ae] are usually borers in timber, or beneath bark, and
   are often very destructive to trees.
   [1913 Webster] Bur