Two new Pergamasus species (Acari: Mesostigmata: Parasitidae) from Slovakia

Two new species from the territory of Slovakia are described: Pergamasus holecovae n. sp. from the Little Carpathians and Pergamasus saxicolis n. sp. from the highest areas of the High Tatras. We now recognize four species groups within the subgenus Pergamasus s. str.: alpinus, athiasae, beklemischevi and crassipes. Both new species belong to the beklemischevi species group. An identification key for males and females of the beklemischevi species group is provided. Distribution of beklemischevi species group is discussed.