Zercon ostovani sp. nov. is described and illustrated based on female specimens collected from Eram Botanical Garden in Fars Province, southwestern Iran. The similarities and differences between related species within the same genus are also discussed. Members of the family Zerconidae are poorly known in Iran (Nemati et al., 2018). Systematically, some mesostigmatic mite families (., Ameroseiidae, Ascidae, Laelapidae, Macrochelidae, Parasitidae, and Phytoseiidae) have been extensively studied in Iran (Kamali et al., 2001). |