Known distribution of Tridactylogonus species as of 1 September 2017. A Localities for T. warrenbenensis sp. n. (filled circles) in Warrenben Conservation Park B Localities for T. obscurus Jeekel, 1982 (filled circles), T. rugosissimus Jeekel, 2002 (triangle) and T. warrenbenensis sp. n. (star); rectangle on Yorke Peninsula shows extent of map A. C Map of Australia; rectangle in South Australia shows extent of map B. Locality data for T. obscurus and T. rugosissimus from Mesibov (2006–2017); base maps for maps A and B from Open Street Map project (https://www.openstreetmap.org).