Figure 1 from: Matushkina N (2011) Sting microsculpture in the digger wasp Bembix rostrata (Hymenoptera, Crabronidae). Journal of Hymenoptera Research 21: 41-52. https://doi.org/10.3897/jhr.21.873

Figure 1 - General organization of the sting apparatus in the digger wasp Bembix rostrata: A diagram showing relative position of main parts in a lateral view (aculeus is extended ventrally, furcula is turned anteriorly; bulb is shown in longitudinal section to show valvilli, the membranous incisura postarticularis is hatched); B-C, SEM micrograph of the sting in ventral B and dorsal C views. Scale bars: 100 μm.