valvula
From ZooTerms (Dictionary of Invertebrate Zoology)
valvula (noun; plural valvulae; Latin diminutive valva, leaf of a folding door): 1. Any small valve-like process.
2. (Arthropoda: Insecta) In Hymenoptera, processes from the valvifers forming the body of the ovipositor and the ovipositor sheath.
