The ant-specific fungi Aegeritella, Laboulbenia, Rickia, Hormiscium, and Myrmicinosporidium in the Holarctic regionnine speciesare reviewed. Present knowledge is highly biased geographically, as shows the single record for Holarctic Asia, and this is to solve. The phylogenetic position of Aegeritella, Hormiscium, and Myrmicinosporidium is unknown. Hosts seem to be also skewed phylogenetically although this may be a true pattern. © 2012 Xavier Espadaler and Sergi Santamaria.