A male of C. clypeata on his perch, a grass stem, at the site where he dragged his abdomen in the farm hayfield.

 
 
  Part of: Alcock J, Simmons LW (2018) Probable marking behavior of Cerceris clypeata (Philanthinae, Crabronidae, Hymenoptera). Journal of Hymenoptera Research 67: 121-125. https://doi.org/10.3897/jhr.67.30517