Figure 4 from: Graf S, Willsch M, Ohl M (2021) Comparative morphology of the musculature of the sting apparatus in Ampulex compressa (Hymenoptera, Ampulicidae) and Sceliphron destillatorium (Hymenoptera, Sphecidae). Deutsche Entomologische Zeitschrift 68(1): 21-32. https://doi.org/10.3897/dez.68.58217

Figure 4 The musculature interconnecting T9 and the second valvifer. Lateral view, anterior to the right, line drawing from dissections. A.Ampulex compressa; B.Sceliphron destillatorium. dT9-2vf a and b – dorsal tergum 9-second valvifer muscle, portion a and b respectively; vT9-2vf – ventral T9 second valvifer muscle; pT9-2vf – posterior tergum 9-second valvifer muscle.