Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

760Maggenti and Gardnerpterygogenea n.pl. [Gr. pteryx, wing; genos, race] (ARTHRO:Insecta) 1. Winged adult insects. 2. Descended fromwinged ancestors. see apterygogenea.pterygoid a. [Gr. pteryx, wing; eidos, like] Wing-like.pterygopolymorphism n. [Gr. pteryx, wing; polys, many;morphos, shape] (ARTHRO: Insecta) Occurrence of differentforms of wings in the same species.pterygostomial region (ARTHRO: Crustacea) In Decapoda, theanterolateral part on the ventral surface of the carapace,on opposite sides of the buccal cavity; jugal region; pterygostome.pterygostomial spine (ARTHRO: Crustacea) In Decapoda, aspine on the anterolateral angle.Pterygota, pterygotes n.; n.pl. [Gr. pterygotos, winged] (AR-THRO: Insecta) A subclass containing the winged and secondarilyapterous insects, with varied metamorphosis, andhave no pregenital abdominal appendages. see Exopterygota,Endopterygota.ptilinal suture (ARTHRO: Insecta) In Diptera, a crescentshapedgroove, situated on the lower part of the frons betweenthe bases of the antennae and the eyes, which usuallyextends ventrally into the facial area; frontal suture.ptilinum n.; pl. ptilina [Gr. ptilon, feather] 1. (ARTHRO: Insecta)In Diptera, a temporary bladderlike structure of apupa that can be inflated and thrust out through the frontal(ptilinal) suture, just above the bases of the antennae, thatpushes off the operculum of the puparium. 2. (NEMATA)Sometimes inappropriately used to describe horn-like orleaf-like ornamentation on the anterior extremity of parasiticforms.ptilota n. [Gr. ptilon, feather] (ARTHRO: Insecta) Winged insects.ptychoidy n. [Gr. ptyche, fold] (ARTHRO: Chelicerata) InOribatida, an articulation between the prosoma and opisthosoma,allowing the legs to be concealed by down foldingof the prosoma.ptycholophous a. [Gr. ptyche, fold; lophos, crest] (BRACHIO)A lophophore with brachia folded into one or more lobes in