Three new species of Halozercon (Acari: Mesostigmata: Zerconidae) from Altai Mountains in South Siberia (Russia) Author Marchenko, Irina I. text Zootaxa 2019 2019-03-21 4568 3 401 434 journal article 28128 10.11646/zootaxa.4568.3.1 337ced60-ab9e-424f-b83f-f439d0ef8068 1175-5326 2601502 3350BF32-11E9-4C7E-917D-AEC26AFE50AC Key to the species of the genus Halozercon 1. Some dorsal setae (except marginal) leaf-shaped or lanceolate.................................................. 2 - Dorsal setae (except marginal) other shapes................................................................. 3 2. Median region of opisthonotal shield with 17–22 setae of J series; peritremes of deutonymph shorter than adult: in adult peritremes reaching spine top of coxae II anteriorly, in deutonymph those reaching middle of coxae II.......... H . tigerek sp. n. - Median region of opisthonotal shield with 12–13 setae of J series; peritremes of adult and deutonymph equal length—reaching level of spine top of coxae II anteriorly............................................. H . barguzin Marchenko, 2018 3. Median region of podonotal and opisthonotal shields with linear reticulation; all podonotal setae smooth; opisthonotal shield with 14–17 setae of J series slightly serrated; dorsal idiosoma 580–595 µm long..................... H . capitaneus sp. n. - Podonotal and opisthonotal shields ornamented by small tubercles over the entire surface; all dorsal setae pilose; opisthonotal shield with more than 22 pilose setae of J series; length of dorsal idiosoma less than 580 µm.......................... 4 to posterior edge of anal opening; male chelicera as in female, fixed digit with five teeth............... H . kazachok sp. n. - Vertex with z1 setae inserted far behind j1 setae; dorsal setae pilose, short and straight: podonotal setae 10–20 µm, opisthonotal 22–25 µm; ventri-anal shield with incisions extending to anterior edge of anal opening; male chelicera with two basal and 5–6 small distal teeth....................................................... H . karacholana Wiśniewski et al . 1992