1 Institute of Systematics and Evolution of Animals; Polish Academy of Sciences; ul. Sławkowska 17; 31-016 Kraków; Poland; State Museum of Natural History; Ukrainian National Academy of Sciences; Teatral'na St. 18; UA 79008 L'viv; Ukraine; Institute of Soil Biology and Biogeochemistry; Biology Centre CAS; Na Sádkách 7; CZ-370 05 Česke Budĕjovice; Czech Republic. shrubovych@gmail.com.
2 Institute of Systematics and Evolution of Animals; Polish Academy of Sciences; ul. Sławkowska 17; 31-016 Kraków; Poland. sternalski@isez.pan.krakow.pl.
3 Institute of Soil Biology and Biogeochemistry; Biology Centre CAS; Na Sádkách 7; CZ-370 05 Česke Budĕjovice; Czech Republic. peter.cuchta@upb.cas.cz.