Myrmicinosporidium durum in Poland: a new location for this fungal ant endoparasite and updated world distribution.

Myrmicinosporidium durum is an enigmatic fungal parasite of ants with an unclear phylogeny and life cycle. Despite the fact that new records of this fungus have been revealed in the last few years; several countries from Eastern Europe still lack such information. With this study, we reveal the most northerly location of this fungus to date and its first record in Poland a contribution to filling the gaps in data about its European distribution. Additionally, we present an updated compilation of the world distribution of M. durum and its host ant species.