Distribution, habitats, and redescription of the rare mite species Iphidonopsis sculptus Gwiazdowicz, 2004 (Mesostigmata: Ascidae) Author Makarova, Olga L. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow 119071, Russia Author Marchenko, Irina I. 0000-0002-9991-9804 Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Siberian Branch, Frunze str. 11, Novosibirsk 630091, Russia. gamasina @ rambler. ru; https: // orcid. org / 0000 - 0002 - 9991 - 9804 gamasina@rambler.ru Author Lindquist, Evert E. 0000-0003-4528-7642 Canadian National Collection of Insects, Arachnids and Nematodes, Ottawa Research and Development Center, Agriculture & Agri- Food Canada, Ottawa, Canada. lindquistm @ primus. ca; https: // orcid. org / 0000 - 0003 - 4528 - 7642 lindquistm@primus.ca text Zootaxa 2021 2021-04-12 4952 3 448 464 journal article 7280 10.11646/zootaxa.4952.3.2 2838ffe2-1307-428b-8f0c-15a9da30d27e 1175-5326 4690531 FDBB59EE-CA93-4D6B-8E70-554A36D6D01B Key to tribes of subfamily Arctoseiinae (adults) 1. Tarsi II–IV with setae ( d -2) elongated, whiplike; subcapitular seta hp -1 and internal palptrochanter seta elongated, curved; dorsal shield usually fully covering body dorsum, often with 1–8 pairs of paddle-shaped setae; sternal/sternitigenital shield fused with endopodal sclerites between coxae I–II and coxae II–III; peritreme long, its margins usually crenulate in different degrees; genu III with eight setae; female with ventrianal shield bearing 1–6 pairs opisthogastric setae, or this shield rarely ( Iphidonopsis ) reduced to broadly expanded anal shield (with circumanal setae only)....................... Zerconopsini tribe n. - Tarsi II–IV with setae ( d -2) unmodified; subcapitular seta hp -1 and internal palptrochanter seta not elongated; dorsal shield fully or partly covering body dorsum, without paddle-shaped setae; sternal/sternitigenital shield fused with endopodal sclerites between coxae I–II and coxae II–III or not; peritreme long or shortened, its margins usually smooth; genu III with seven setae; female with anal shield or expansive ventrianal shield bearing 6 pairs of opisthogastric setae......................... 2 2. Female and male with metapodal platelets incorporated into expansive ventrianal shield bearing 6 pairs of opisthogastric setae; male with sternitigenital shield fully consolidated with endopodal strips alongside coxae I–IV.......... Maxiniini tribe n. - Female with 1–2 pairs of metapodal platelets free from anal shield bearing only three circumanal setae (exception—shield of Arctoseius magnanalis Evans, 1958 with additional pair of opisthogastric setae); male with metapodal platelets free or incorporated into ventrianal (or rarely separate ventral and anal) shield; male with sternitigenital shield separated from endopodal strips between coxae III–IV.......................................................... Arctoseiini Evans, 1963