Gordon ML, Colville JF, Engelbrecht A, Couldridge VCK. Ancient Grasshoppers: A revision of the genus Bullacris (Orthoptera: Pneumoridae). Zootaxa [Internet]. 2024 Jul. 1 [cited 2025 Jul. 11];5474(4):301-54. Available from: https://mapress.com/zt/article/view/zootaxa.5474.4.1