\Lon`gi*cor"ni*a\, n. pl. [NL., fr. L. longus long +
cornu horn.] (Zo["o]l.)
A division of beetles, including a large number of species,
in which the antenn[ae] are very long. Most of them, while in
the larval state, bore into the wood or beneath the bark of
trees, and some species are very destructive to fruit and
shade trees. See {Apple borer}, under {Apple}, and {Locust
beetle}, under {Locust}.