Hansson, C., A. Aebi, and B. Benrey. “Horismenus Species (Hymenoptera: Eulophidae) in a Bruchid Beetle Parasitoid Guild, Including the Description of a New Species”. Zootaxa, vol. 548, no. 1, June 2004, pp. 1–16, doi:10.11646/zootaxa.548.1.1.