Requested reference
Řezáč, M. & Růžička, V. (2022). Thanatus aridorum Šilhavý, 1940 from Czechia is a junior synonym of Thanatus formicinus (Clerck, 1757) (Araneae: Philodromidae). Arachnologische Mitteilungen 63: 15-18. doi:10.30963/aramit6305 -- Show included taxa