Review of the Iranian species of Pachylaelapidae, with description of a new species of Onchodellus (Acari: Mesostigmata) Author Ahadiyat, Ali Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran; Author Moghadam, Sahebeh Ghasemi Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran; Author Kermani, Reyhaneh Abutaleb Department of Plant Protection, Science and Research Branch, Islamic Azad University, Tehran, Iran; Author Harchi, Omid Jo- Institute of Environmental and Agricultural Biology (X-BIO), Tyumen State University, Tyumen, Russia; text Zootaxa 2020 2020-05-13 4778 1 journal volume 22208 10.11646/zootaxa.4778.1.2 fb795361-83e6-40cd-9325-a88391da6226 1175-5326 3823648 E7873831-2826-47D1-912C-FA8A413DC6E4 Onchodellus alpinus ( Willmann, 1953 ) Pachylaelaps alpinus Willmann, 1953: 459 . Onchodellus alpinus .— Mašán, 2007: 136 ; Mašán & Halliday, 2014: 12 . Habitat preference in Iran . Soil, leaf-litter, and honeybee hives. Provincial distribution in Iran . Guilan , Mazandaran , and Tehran ( Rahmani et al ., 2006 , published as Pachylaelaps alpinus Willmann, 1953 ; Ahangaran et al ., 2012 ; Mojahed et al ., 2017 ). World distribution. Asia ( Iran ) ( Mojahed et al ., 2017 ), Europe (Central Europe, Alps area, Austria , Finland , and Slovakia ) ( Karg, 1971 , 1993 ; Mašán, 2007 ; Mašán & Mihál, 2009 ; Mašán & Halliday, 2014 ; Huhta, 2016 ). Notes. Ahangaran et al . (2012) reported a species, namely Onchodellus cf. alpinus , based on insufficient description and figures of female specimens, in which all the mentioned morphological characteristics were similar to O . alpinus based on the description prepared by Mašán (2007) , but they did not consider any differences between these two species. Therefore, here we considered it as O . alpinus . They found it at the altitude of 1,410 m a.s.l. This euryhygrophilous edaphic detriticole mite has a wide ecological plasticity and can be found in both woodland and non-woodland landscapes, but shows obvious preference for deciduous forest habitats mostly with broad-leaved trees ( Mašán, 2007 ; Mašán & Mihál, 2009 ). Also, it was found in sea shore soil, meadows, dry meadows, compost, moss, detritus, and dung ( Karg, 1993 ; Huhta et al ., 2010 ). Although Costa (1971) found Onchodellus alpinus in nests of a mole-rat species and other sites, at the altitude of 1,600 m a.s.l., Mašán & Halliday (2014) considered it as Onchodellus sp., not O . alpinus .