antennae

the antennae are filiform.

trifurcate antennae; trifurcate ribs.

he has the political antennae of a party whip.

the antennae are divided into large feathery plumes.

Sometimes a creature uses a pair of antennae to swim.

Antennae of B. tabaci are made up of scapus, pedicle and flagella that the latter consist of 1-5 segments and most of the antennal sensilla lie on its outer, upper and lower surfaces.