Dor
or DORR, a species of beetle, belonging to the family Geotrupidæ, or earthborers.
It is of a glossy violet, black, or deep greenish-black. The club of the antennæ is yellowish, the elytra smooth, but slightly punctuated, as is the thorax. It may often be seen flying about in the summer evenings. Its size and weight render it very unwieldy on the wing. The female lays its eggs in patches of cow-dung. It is about an inch long. It is also called dor or dorr-beetle, dor-fly, and buzzard-fly.