How to measure petiole length. Dorsal view, the red bracket demonstrates the length of the part that is measured.

  
 
  Part of: Dörfel TH, Ohl M (2015) A revision of the Australian digger wasps in the genus Sphex (Hymenoptera, Sphecidae). ZooKeys 521: 1-104. https://doi.org/10.3897/zookeys.521.5995