Ba, Yi-Bin, and Guo-Dong Ren. 2009. “Taxonomy of Promethis Pascoe (Coleoptera, Tenebrionidae) on Hainan Island, China”. Zootaxa 2064 (1). Auckland, New Zealand:27–38. https://doi.org/10.11646/zootaxa.2064.1.3.