dexiotorma
From ZooTerms (Dictionary of Invertebrate Zoology)
Arthropoda: Insecta) 1. A small sclerotic ring of scarabaeoid larvae, extending inward from the epipharynx, occasionally bearing a heel-shaped pternotorma. 2. The right torma.
dexiotorma (noun; plural dexiotormae; Greek dexios, on the right; torma, socket): (