Prinsloo, G. L., and J. A. Kelly. “The Tetrastichine Wasps (Hymenoptera: Chalcidoidea: Eulophidae) Associated With Galls on Erythrina Species (Fabaceae) in South Africa, With the Description of Five New Species”. Zootaxa, vol. 2083, no. 1, Apr. 2009, pp. 27–45, doi:10.11646/zootaxa.2083.1.3.