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Webster 1913 Edition

Noun.

(Zool.)

A large nocturnal beetle of the genus

Lucanus

(as

Lucanus capreolus

, and

Lucanus dama

), having long, curved upper jaws, resembling a sickle. The grubs are found in the trunks of old trees.

hornbug ‎(plural hornbugs)

A large nocturnal beetle of the genus Lucanus, with long, curved upper jaws resembling a sickle, and whose grubs are found in the trunks of old trees.