corniculus
From ZooTerms (Dictionary of Invertebrate Zoology)
corniculus (noun; plural corniculi; Latin diminutive cornu, horn): 1. (Arthropoda: Chelicerata) In some mites, a horn-shaped infracapitular seta on the malapophysis.
2. (Arthropoda: Insecta) In Orthoptera, refers to the hardened tips of the dorsal and ventral valves of the ovipositer, used to dig holes in the ground for the deposition of eggs
See also: urogomphi.
