Taxonomic comments on some species of the genus Eustigmaeus Berlese (Trombidiformes: Stigmaeidae), with a revised checklist of Eustigmaeus and descriptions of two new species from Türkiye

Two new species of Eustigmaeus Berlese (Acari: Stigmaeidae), E. incisus n. sp. and E. paraincisus n. sp. are described and illustrated from T & uuml;rkiye. This paper presents compile checklist of the valid Eustigmaeus species. Eustigmaeus sphagneticolus Cooreman stat. nov., originally described as a subspecies of E. ottavii by Cooreman in 1943, is regarded as a separate species. Eustigmaeus aminiae (Nazari and Khanjani) n. comb.. and E. indiscretus (D & ouml;nel and Do & gbreve;an) n. comb.. (from Ledermuelleriopsis Willmann) have a partially detached hysterosomal shield. Currently, we consider that these species belong more comfortably in Eustigmaeus than in Ledermuelleriopsis, where they are considered transitional species between the genera Eustigmaeus and Ledermuelleriopsis.