Amblyseius parvicalyx sp. nov. (Parasitiformes: Phytoseiidae) from Iran with an updated key to Amblyseius species known from the country

A new species of the family Phytoseiidae, Amblyseius parvicalyx sp. nov., is described based on female specimens collected from leaf litter in the Arasbaran forest, East Azerbaijan Province, Iran. The species is assigned to the americanus species group of Denmark & Muma and the duncansoni species subgroup of Chant & McMurtry, based on the morphology of the dorsal setae and the shape of the spermatheca. Amblyseius parvicalyx sp. nov. is primarily characterized by its small, cup-shaped calyx of the spermatheca and by the relatively long dorsal seta z4, which nearly reaches the base of seta s4. Comparisons with closely related species are provided, and diagnostic morphological characteristics distinguishing the new species from congeners are discussed in detail. In addition, an updated identification key to the Amblyseius species reported from Iran is presented.