Archer, M. A. 2014. The Vespoid Wasps (Tiphiidae, Mutillidae, Sapygidae, Scoliidae and Vespidae) of the British Isles. Handbooks for the Identification of British Insects, Volume 6, Part 6. Royal Entomological Society.

Budriené, A. 2003. Prey of Symmorphus Wasps (Hymenoptera: Eumeninae) in Lithuania. Acta Zoologica Lituanica 13:306-310

Douwes, P., Abenius, J., Cederberg, B., Wahlstedt, U., Hall, K., Starkenberg, M., Reisborg, C. & Östman, T. 2012. Nationalnyckeln till Sveriges flora och fauna. Steklar: Myror–getingar. Hymenoptera: Formicidae-Vespidae. ArtDatabanken, SLU, Uppsala. 382 s.

Li, T.-J. & Chen, B. 2014. The taxonomic accounts of the genus Symmorphus Wesmael (Hymenoptera, Vespidae, Eumeninae) from China, with descriptions of three new species. ZooKeys 389: 9–26.

Sorjoampiaiset – Symmorphus