246. Ixodes trianguliceps Birula, 1895 .

Palearctic: 1) Armenia, 2) Austria, 3) Azerbaijan, 4) Belarus, 5) Belgium, 6) Bulgaria, 7) Croatia, 8) Czechia, 9) Denmark, 10) Estonia, 11) Finland, 12) France, 13) Georgia, 14) Germany, 15) Great Britain, 16) Hungary, 17) Ireland, 18) Italy, 19) Latvia, 20) Lithuania, 21) Netherlands, 22) Norway, 23) Poland, 24) Romania, 25) Russia, 26) Slovakia, 27) Slovenia, 28) Spain, 29) Sweden, 30) Switzerland, 31) Turkey, 32) Ukraine (Feider 1965, Gilot et al. 1976, Filippova 1977, Martyn 1988, Jaenson et al. 1994, Trilar 2004, Kolonin 2009, Morel 2003, Cringoli et al. 2005, Paulaskas et al. 2010, Krčmar 2012, Nowak-Chmura & Siuda 2012, Petney et al. 2012, Obsomer et al. 2013, Dilbaryan & Hovhannisyan 2016, Estrada-Peña et al. 2017, Hornok et al. 2020a, Tsapko 2020, Fedorov & Leonovich 2021, Keskin & Selçuk 2021, Rubel et al. 2021, Rubel & Brugger 2022).

Guglielmone & Nava (2014) listed five synonyms for Ixodes trianguliceps, but Ixodes tenuirostris is the most common and was used instead of Ixodes trianguliceps in the first description of the male in Neumann (1902), as well as in the first accounts of the nymph and larva, published by Nuttall & Warburton (1911).

The presence of Ixodes trianguliceps in Iran, as noted by Moravvej et al. (2015), requires confirmation, and that country is provisionally excluded from the range of this tick.