Geographic distribution of the Tropiocolotes species in Saudi Arabia and the neighbouring territories. The coloured squares (blue = T. yomtovi, red = T. nattereri sensu stricto, green = the AlUla candidate species, and yellow = T. wolfgangboehmei) represent genetically analysed material, and the white circles represent observations and photographed records. The black arrow points to the location of the Saudi islands of Tiran and Sanafir mentioned in the text. The new record of T. wolfgangboehmei is highlighted by a dashed yellow buffer. Geographical sampling is overlaid by the majority rule consensus map of the two binarised distribution models of T. yomtovi. Dark blue indicates areas of suitability recovered by both models that differed in the thinning strategy; light blue indicates regions predicted as suitable by only one of the models (see Materials and Methods for more details). The dashed line indicates the spatial background used for developing the model. The specimen depicted is an unvouchered individual of T. yomtovi from approximately 30 km southeast of Haql, Tabuk Province, photographed by L. Pola.