The posterior, concave
area on the ventral side of the
cuticle surface of abdominal
tergite 6 corresponds to the acroteral
calyx on abdominal
tergite 7 when the
abdomen is in a retracted position.
written by: Ulmer, J. 2021. The Waterston’s evaporatorium of Ceraphronidae (Ceraphronoidea, Hymenoptera) – A morphological barcode for a cryptic taxon . Journal of Hymenoptera Research.