Hypoptera hypoptere see tegula

hypoptygma n. [Gr. hypo, under; ptygma, anything folded] (NEMATA) Anterior and posterior cuticular flaps of the cloacal opening in some males. see epiptygma.

hypopus n.; pl. hypopi [Gr. hypo, under; pous, foot] (AR-THRO: Chelicerata) 1. In Acari, the second nymphal stage. 2. The non-feeding deutonymph of Acaridida; either active, phoretic nymphs or rather inactive resistant nymphs. hy-pop(i)al a.

hypopygial spine (ARTHRO: Insecta) The caudal spine ending of the hypopygium of some female cynipid wasps.

hypopygium n. [Gr. hypo, under; pyge, rump] (ARTHRO: Insecta) The last ventral plate; sometimes including attached segments of the postabdomen; terminalia; genital segments (commonly used for Diptera). see pygofer.

hyposcleritic a. [Gr. hypo, under; skleros, hard] (ARTHRO: Chelicerata) A region only partially sclerotized in mites.

hypostasis n. [Gr. hypo, under; stasis, a standing] A non-alle-lic recessive gene, interferred with by an epistatic gene.

hypostegal coelom (BRYO: Gymnolaemata) In Cheilostomata, part of the body cavity separated from the principle body cavity of the zooid; it may communicate with the principle body cavity by pores or remain confluent with it at some point.

hypostegal epithelium (BRYO: Stenolaemata) In free-walled forms, epithelium that lays down extrazooidal skeleton.

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