CERCUS
cercus: translation
n.; pl. cerci [Gr. kerkos, tail]
(ARTHROPODA)
One of a pair of appendages that arise at the posterior of the abdomen of arthropods that function as sense organs; abdominal filaments; acrocercus; anal forceps; anal styles; anal stylets; caudal filaments; caudal setae; caudal ramus; spinnerets of Symphyla; tergal valves; for Coleoptera see urogomphi.