Pitts, James P. “Review of the Sphaeropthalma Imperialis Species-Group (Hymenoptera: Mutillidae), With Descriptions of Females and Taxonomic Notes”. Zootaxa 1248, no. 1 (June 29, 2006): 1–20. Accessed April 10, 2025. https://mapress.com/zt/article/view/zootaxa.1248.1.1.