Rasmussen, Claus, and John S. Ascher. “Addendum To: Joseph Vachal (1838–1911): French Entomologist and Politician (Zootaxa, 3442, 1–52)”. Zootaxa 3931, no. 2 (March 12, 2015): 298–300. Accessed May 3, 2025. https://www.mapress.com/zt/article/view/zootaxa.3931.2.10.