Contributions to the Zerconidae (Acari: Mesostigmata) fauna of Dilek Peninsula-Büyük Menderes Delta National Park, Türkiye Author Urhan, Raşit Department of Biology, Faculty of Science, Pamukkale University, Denizli, Türkiye Author Karaca, Mehmet Department of Electronic & Automation, Denizli Vocational School of Technical Sciences, Denizli, Türkiye karacamehmet@pau.edu.tr text Acarological Studies 2023 2023-01-30 5 1 21 33 http://dx.doi.org/10.47121/acarolstud.1226687 journal article 10.47121/acarolstud.1226687 2667-5684 Zercon kallimcii Urhan, 2010 Materials examined: 64 females : soil and litter samples un- der black pine ( P. nigra ), Aleppo oak ( Q. infectoria ) and olive ( O. europaea ), 37°39.429' N , 27°5.705' E , 669 m a.s.l., vicinity of surveillance radar area of Naval Forces Command, 10 December 2018 . 130 females , 4 DN and 2 PN: soil, litter and moss samples under sage-leaved rock-rose ( C. salviifolius ), kermes oak ( Q. coccifera ), holy bramble ( R. sanctus ), Turkish pine ( P. brutia ) and holly oak ( Q. ilex ), 37°44.420' N , 27°21.429' E , 310 m a.s.l., vicinity of AğaÇlı neighborhood, 14 May 2019 . 7 females and 1 male : soil, litter and moss samples under Turkish oak ( Q. cerris ), 37°41.448' N , 27°17.376' E , 758 m a.s.l., vicinity of Davutlar neighborhood, 9 November 2019 . 20 females and 10 males : soil, litter and moss samples under Turkish pine ( P. brutia ), holly oak ( Q. ilex ) and sage-leaved rock-rose ( C. salviifolius ), 37°42.624' N , 27°18.512' E , 277 m a.s.l., vicinity of Kurşunlu monastery, 9 November 2019 . 3 females : soil and litter samples under black pine ( P. nigra ), thorn ( Paliurus spina-christi ) and holly oak ( Q. ilex ), 37°39.411' N , 27°4.963' E , 612 m a.s.l., vicinity of Dipburun Guardhouse, 3 February 2020 . Short description: On podonotum, setae j1–2 and marginal setae ( s2–3 , s6 , r2 and r4–5 ) finely barbed, the remaining setae short, smooth and needle-like. On opisthonotum, setae J1 and Z1 smooth and needle-like. Setae J2–5 , Z2–5 and S2–5 finely barbed with hyaline endings. Marginal setae ( S1 and R 1–6 ) finely barbed. Although setae J5 and Z4 extend to the edge of the opisthonotum, setae Z5 and S4–5 extend to beyond the opisthonotum. Pores gdS2 located between setae Z2 and S3 , closer to Z2 , gdZ3 located between setae J5 and Z4 , closer to Z4 . Dorsal cavities distinct and strongly developed. Anterior margin of ventrianal shield with 2 pairs of setae ( JV1 and ZV 1 ), glands gv2 present. Posterolateral tips of peritrematal shield reach the level of seta S1 (Urhan, 2010). Distribution in Türkiye : Denizli (Urhan, 2010), Aydın (present study). Known distribution: This species is only known from Türkiye (Urhan, 2010).