Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology 67antenodal cross veins (ARTHRO: Insecta) In Odonata, wingveins along the costal border between the base and thenodus, extending from the costa to the radius.anteocular a. [L. ante, before; oculus, eye] Before the eye.antepectus n. [L. ante, before; pectus, chest] (ARTHRO: Insecta)The underside of the prothorax.antepenultimate a. [L. ante, before; paene, almost; ultimus,last] Pertaining to the second from the last segment ofvarious invertebrates.antepleuron see episternumantepronotum n. [L. ante, before; Gr. pro, before; notos,back] (ARTHRO: Insecta) In Diptera, the anterior division ofthe pronotum.antepudendum n. [L. ante, before; pudenda, external genitals,vulva] (NEMATA) Genital tube proceeding anterior fromthe vulva in monovarial amphidelphic descendants. antepudendica.antepygidial bristle (ARTHRO: Insecta) In Siphonaptera, oneor more large bristles on the apical margin of the seventhtergum.anteriad adv. [L. ante, before; ad, toward] Directed towardthe anterior part of the body; directed forward, as opposedto posteriad.anterior a. [L. ante, before] 1. Before or toward the front. 2.Pertaining to the direction in which the head tends to pointwhen an animal is active. 3. (MOLL: Gastropoda) In acrawling gastropod, pertaining to the head being closest tothat part of the apertural margin lying farthest from theshell apex; in high-spired conispiral shells, and some others,anterior is equivalent to abapical.anterior apophyses (ARTHRO: Insecta) In female Lepidoptera,a pair of slender chitinized internal rods extending anteriorlyfrom the ninth abdominal segment.anterior canal see siphonal canalanterior cardiac chamber see proventriculusanterior hard plate (ARTHRO: Insecta) In Diptera, an irregularplatelike anterior area of the clypeopalatum of Culicidae.