a. Entom. [ad. mod.L. trachēlāt-us, f. Gr. τράχηλος neck: see -ATE2.] Having a neck, or a constriction like a neck: said of the prosternum in certain hymenopterous insects. So Tracheliate a., belonging to the division Trachelia or Trachelida of beetles, which have a neck-like constriction behind the eyes; also Trachelidan a. = tracheliate; sb. a member of the Trachelida.
1826. Kirby & Sp., Entomol., IV. xlvi. 328. Trachelate…. When of itself it forms a neck, the prothorax being represented only by membrane.
1842. Brande, Dict. Sci., etc., Trachelidans, the name of a family of Coleopterous insects, comprising those which have the head supported on a kind of pedicle or neck.
1891. Cent. Dict., Trachelate … Tracheliate … Trachelidan.
