Evans HE & Shimizu A. 1996. The evolution of nest building and communal nesting in Ageniellini (Insecta: Hymenoptera: Pompilidae). Journal of Natural History 30: 1633-1648.

Evans HE & Shimizu A. 1998. Further notes on the nesting behaviour of Ageniellini (Insecta: Hymenoptera: Pompilidae). Journal of Natural History 32: 1411–1412.

Gess FW. 1981. Some aspects of an ethological study of the aculeate wasps and the bees of a karroid area in the vicinity of Grahamstown, South Africa. Annals of the Cape Provincial Museum, Natural History 14: 1–80.

Gess FW, Gess SK. 1974. An ethological study of Dichragenia pulchricoma (Arnold) (Hymenoptera: Pompilidae), a southern African spider-hunting wasp which builds a turreted subterranean nest. Annals of the Cape Provincial Museums 9: 187–214.

Gess FW, Gess SK. 1976. Ethological notes on Dichragenia neavei (Kohl) (Hymenoptera: Pompilidae), an African spider-hunting wasp building a turreted, subterranean nest. Annals of the Cape Provincial Museums 11: 129–134.

Gess, F.W. & Gess S.K. 1977. Bricks without straw the nesting of the wasp Dichragenia pulchricoma (Arnold). The Eastern Cape Naturalist 61: 6-8.

Gess SK, Gess FW 2014. Wasps and bees in southern Africa. SANBI Biodiversity Series 24. South African National Biodiversity Institute, Pretoria. 320 pp.

Picker, M., Griffiths, C & Weaving, A. 2002. Field Guide to Insects of South Africa. Struik Publishers, Cape Town.

Saussure H de. 1890-1891. Histoire naturelle des Hymenoptères. Grandidier, Alfred, Histoire physique, naturelle et politique de Madagascar. v. 20. Paris: L'Imprimerie nationale,1890-91.