Acrotergal calyx within genera of Ceraphron Group (brightfield) A Ceraphron (Pristomicrops) sp. B Pteroceraphron mirabilipennis C Cyoceraphron striatopleuralis. Genera within the Ceraphron group which have the acrotergal calyx and bulla (bul) well separated. The evaporatorium extends up the lateral walls of the bulla in P. mirabilipennis (chr. 5)

  Part of: Ulmer JM, Mikó I, Deans AR, Krogmann L (2021) The Waterston’s evaporatorium of Ceraphronidae (Ceraphronoidea, Hymenoptera): A morphological barcode to a cryptic taxon. Journal of Hymenoptera Research 85: 29-56.