alternative definition added about 1 year ago by Istvan Miko
The area of the dorsal flange of the second valvifer that is anterior to the site of origin of the basal line.
Reference: Ernst, A., I. Mikó, and A. R. Deans. 2013. Morphology and function of the ovipositor mechanism in Ceraphronoidea (Hymenoptera: Apocrita). Journal of Hymenoptera Research.
Cross reference:
None provided.