Reference:
KURCZEWSKI, F. E.; MILLER, R. C. Observations on some nests of Crossocerus (Blepharipus) A. Annulipes (Lepeletier and Brulle)(Hymenoptera: Sphecidae). Proceedings of the Entomological Society of Washington, 1986, 88.1: 157-162.
URL:
https://www.biodiversitylibrary.org/part/214260
