The
sclerite that is articulted with the
first valvifer and
second valvifer and is connected to the
second valvifer via muscles.
written by: Ernst, A., I. Mikó, and A. R. Deans. 2013. Morphology and function of the ovipositor mechanism in Ceraphronoidea (Hymenoptera: Apocrita). Journal of Hymenoptera Research.