The mesosomal musculature of Sphex (Fernaldina) lucae divergent to S. destillatorium; volume rendering, transparent exoskeleton. A. Lateral view, anterior to the left; B. Medial view, anterior to the right; C. Anterior view on the posterior thoracic spiracle occlusor; D. Dorsomedial view, anterior top right. Abbreviations: sp3occ – posterior thoracic spiracle occlusor; sp2 – posterior spiracle; pl2-cx2 – mesopleuro-mesocoxal; pl2-cx2b – second mesopleuro-mesocoxal; fu2l-tr2 – lateral mesofurco-mesotrochanteral; fu2m-tr2 – median mesofurco-mesotrochanteral; s3-cx3 – metasterno-metacoxal; pl3m-cx3 – median metapleuro metacoxal; fu3l-cx3 – lateral metafurco metacoxal; fu3m-cx3 – median metafurco metacoxal; pl3l-cx3 – lateral metapleuro metacoxal; mepr – mesepimeral ridge. Scale bars: 0.7 mm (A), 0.6 mm (B), 0.3 mm (C), 0.5 mm (D).