helus — n.; pl. heli [Gr. helos, nail] (ARTHROPODA: Insecta) In scarabaeoid larvae, a coarse fixed spine located near the haptomerum … Dictionary of invertebrate zoology
paria — n.; pl. ae [Gr. pareion, cheek] (ARTHROPODA: Insecta) In scarabaeoid larvae, the lateral paired region of the epipharynx from the clithrum, or epizygum and haptomerum to the dexiotorma or laetorma … Dictionary of invertebrate zoology
pedium — n.; pl. dia [Gr. pedion, open plain] (ARTHROPODA: Insecta) In scarabaeoid larvae, the central part of the epipharynx, bare and soft skinned, between the haptomerum and haptolachus; crossed on the left side by the epitorma … Dictionary of invertebrate zoology
zygum — n.; pl. zyga [Gr. zygon, yoke] 1. (ARTHROPODA: Crustacea) In Ostracoda, a chitinous process of the male copulatory apparatus suspended in the posterior shell region by a system of chitinous rods, about which the peniferum arcs. 2. (ARTHROPODA:… … Dictionary of invertebrate zoology