An updated checklist of Canadian and Alaskan Collembola Author Babenko, Anatoly Author Stebaeva, Sophya Author Turnbull, Matthew S. text Zootaxa 2019 2019-05-02 4592 1 1 125 journal article 26934 10.11646/zootaxa.4592.1.1 e5152ce0-a14b-4e7a-a676-26b4765bc49c 1175-5326 2656929 B6FF005C-D0AA-4532-8ACC-43D3DED984EF I. palustris ( Müller, 1776 ) – Podura palustris Müller, 1776: 184 AK Folsom 1919 , 1937 as var. prasinus ; Weber 1950 ; Hurd & Lindquist 1958 ; Edwards 1972 ; Danks 1981 ; Skidmore 1995 NT Weber 1950 ; Hammer 1953 ; Danks 1981 ; Toda & Tanno 1983 ; Skidmore 1995 NU Wahlgren 1907 ; Folsom 1919 , 1937 as var. prasinus ; Hammer 1953 , 1953a ; Oliver 1963 ; Danks & Byers 1972 ; Addison 1975 , 1977 ; Ryan 1977 ; Danks 1980 , 1981 ; Brodo 2000 BC Spencer 1948 ; Marshall et al. 1990 ; Skidmore 1995 ; Cannings 2010 MB Bird 1930 as palustris prasina ; McClure 1943 ; Hammer 1953 ; Aitchison 1979 ; Skidmore 1995 ON James 1933 as palustris forma principalis , var. prasina , var. fucicola and var. balteata ; Folsom 1937 as var. prasinus ; Judd 1949 ; Skidmore 1995 QC Skidmore 1995 ; Therrien et al. 1999 , 1999a ; Chagnon et al. 2000 , 2000a NS Stach 1966 ; Skidmore 1995 Remarks: Christiansen & Bellinger (1980 , p. 682) wrote that “most previous Nearctic records of I. palustris actually must be bimus or tricolor , though I. palustris probably occurs as an introduced form”. The same was stated by Fjellberg (1986 , p. 2388): “Older arctic records of Isotomurus palustris (Müll.) are probably all Isotomurus tricolor ”. On the other hand, “ I. stuxbergi from Taimyr and specimens from Devon Island which were identified by Babenko (1994) as I. tricolor ( Packard, 1873 ) , are hardly separable” ( Babenko & Fjellberg 2006 , p. 72). Specimens from Devon and Ellesmere Islands, having clearly ciliated setae, are more similar to I. palustroides Folsom than to I. tricolor as it was defined by Christiansen & Bellinger (1980) . In other words, many, if not all of the above records are probably erroneous and much more study is necessary before a successful taxonomic revision of the Nearctic representatives of this genus can be made. General distribution: unclear due to confusion with related species, described from Europe.