tegmen

tegmen (noun; plural -mina; Latin tegmen, cover): 1. A tegument or covering.

2. (Arthropoda: Insecta) a. In Coleoptera, a single or divided sclerite proximad of the penis (phallobase); may be divided into basal piece and parameres

See also: tegumen. b. In some Orthoptera, Dictyoptera and Homoptera, the hardened leathery fore wing. 3. (Echinodermata: Crinoidea) An oral wall covering the calyx cup.