Overview of the sclerites of the sting apparatus. Lateral view, anterior to the right. A. Ampulex compressa, line drawing from dissections; B. Sceliphron destillatorium, line drawing from dissections; C. Ampulex compressa, 3D reconstruction; D. Sceliphron destillatorium, 3D reconstruction, stinger extended. 1vv – first valvula; 2vv – second valvula; 3vv – third valvula; fu – furcula; r1 – first ramus; r2 – second ramus; 1vf – first valvifer; 2vf – second valvifer; T9 – tergum 9; T8 – tergum 8; sp – spiracle; spa – sensillar patch. Scale bars: 0.5 mm.