Volsella, lateral view. 91 Tachysphex austriacus 92 T. smissenae sp. n. 93 T. bohemicus 94 T. cretensis sp. n. 95 T. dimidiatus 96 T. ferrugineus 97 T. jokischianus 98 T. nigripennis 99 T. nobilis sp. n. 100 T. opacus 101 T. pompiliformis 102 T. punctipleuris sp. n.

 
 
  Part of: Straka J (2016) Tachysphex austriacus Kohl, 1892 and T. pompiliformis (Panzer, 1804) (Hymenoptera, Crabronidae) are a complex of fourteen species in Europe and Turkey. ZooKeys 577: 63-123. https://doi.org/10.3897/zookeys.577.7301