The genus most closely related to Satyrium is presumed to be Pachites, which together with Satyrium makes up the subtribeSatyriinae of the Diseae. Historically other species with helmet-shaped flowers e.g. Aceras, Chamorchis and Platanthera, often were included in the genus Satyrium, but far from belonging in the same genus, they no longer are included even within the Satyriinae, but within the tribeOrchideae. In a 2015 classification of Orchidaceae, Satyrium itself was placed in the subtribe Orchidinae.[2]
Timotheüs van der Niet, and H. Peter Linder. 2008. "Dealing with incongruence in the quest for the species tree: A case study from the orchid genus Satyrium". Molecular Phylogenetics and Evolution47(1):154-174. doi:10.1016/j.ympev.2007.12.008.
van der Niet, T., Liltved, W.R., Oliver, E.G.H. 2009. Satyrium situsanguinum (Orchidaceae): a new species from the Western Cape, South Africa. South African Journal of Botany 75, 22–26. https://doi.org/10.1016/j.sajb.2008.06.006
van der Niet, T., Liltved, W.R., Johnson, S.D. 2011a. More than meets the eye: a morphological and phylogenetic comparison of long-spurred, white-flowered Satyrium species (Orchidaceae) in South Africa. Botanical Journal of the Linnean Society 166, 417–430. https://doi.org/10.1111/j.1095-8339.2011.01143.x
van der Niet, T. 2017. Satyrium liltvedianum: a newly discovered orchid species from the Kogelberg Mountains of the Cape Floristic Region (South Africa). South African Journal of Botany 111, 126–133. https://doi.org/10.1016/j.sajb.2017.03.018.
Castañeda-Zárate, M., Johnson, S.D., van der Niet, T. 2022. Description of a new species within the Satyrium longicauda (Orchidaceae) complex from South Africa, based on integrative taxonomy. South African Journal of Botany 148, 379–386. https://doi.org/10.1016/j.sajb.2022.04.027.
Castañeda-Zárate, M., Bytebier, B., Johnson, S.D., van der Niet, T. 2022. Satyrium cernuiflorum, a new name for Satyrium cernuum Castañeda-Zárate & van der Niet (Orchidaceae). South African Journal of Botany 150: 13. https://doi.org/10.1016/j.sajb.2022.06.061