S. C. Buys, “Cocoon morphology of the cockroach-hunting apoid wasp Ampulex compressa (Fabricius) (Hymenoptera, Ampulicidae)”., contrib.entomol., vol. 65, no. 2, pp. 239–242, Dec. 2015, doi: 10.21248/contrib.entomol.65.2.239-242.