Acarological Society of Iran Persian Journal of Acarology 2251-8169 13 2 2025 12 01 Eustigmaeus pseudosetiferus sp. nov. (Acari: Trombidiformes: Stigmaeidae) from Iran 233 241 238202 10.22073/pja.v13i2.84055 EN Mohammad Bagheri Department of Plant Protection, Faculty of Agriculture, University of Maragheh, Maragheh, Iran Mojtaba Mohammad-Doustaresharaf Department of Plant Protection, Faculty of Agriculture, University of Maragheh, Maragheh, Iran Journal Article A new species of <em>Eustigmaeus </em>Berlese, 1910 (Acari: Stigmaeidae), <em>E</em>. <em>pseudosetiferus</em>, is described and illustrated from <em>Astragalus</em> sp. (Fabaceae), in Urmia, West Azerbaijan province, Iran. A key to the species of <em>Eustigmaeus </em>known from Iran is provided and <em>E. isfahaniensis</em> is considered as a junior synonym of <em>E. ottavii</em>. https://www.persianacarology.org/article_238202_da2e64e8176245a3778ba3ae9c2a8a90.pdf