The flange that is adjacent to the border between the ventral and lateral premental faces and that overlaps externally the median part of the posterior stipital sclerite.
written by: Popovici, O. A., I. Mikó, K. Seltmann, and A. R. Deans. 2012. The maxillo-labial complex in Sparasion (Platygastroidea: Platygastridae). Journal of Hymenoptera Research in prep.
