Acarological Society of Iran Persian Journal of Acarology 2251-8169 10 1 2025 12 01 Stigmaeus exilis, a new fusiform species of Stigmaeus Koch (Acariformes: Stigmaeidae) from Sansa, Turkey 19 28 238681 10.22073/pja.v10i1.64436 EN Salih Doğan Erzincan Binali Yıldırım University, Faculty of Arts and Sciences, Erzincan, Turkey; Sibel Doğan Erzincan Binali Yıldırım University, Vocational School of Health Services, Erzincan, Turkey; Journal Article A new species of the genus <em>Stigmaeus</em> (Stigmaeidae), <em>S. exilis</em><strong> sp. nov.</strong>, is described based on the adult females collected from soil in a dead walnut tree hollow from Sansa Gorge, Turkey. Illustrations and phase contrast microscopic images of the new species are also given here. This species can be distinguished by having thin and slender body, anterior margin of prodorsum microtuberculate, posterior margin of propodosomal shield indenting forward by striae, apodemal marking present, eyes and postocular bodies absent, median zonal shield entire, suranal shield entire and bearing three pairs of setae, and femur II with four setae. Description Mite Raphignathoidea Sansa Stigmaeus https://www.persianacarology.org/article_238681_d5c91b72a8d99eacf7905e85a0e5522b.pdf