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 D. nigrifrons ( Folsom, 1937 ) – Isotoma ( Isotoma ) nigrifrons Folsom, 1937: 105 BC Addison et al. 2003 , cf. MB Aitchison 1979 , cf.; Lindo 2014 ON Skidmore 1995 ; Huebner et al. 2012 QC Therrien et al. 1999 , 1999a ; Chagnon et al. 2000 , 2001a Remarks: Skidmore’s record of this species for ON is probably based on James’s record (1933) for I. nigra (see remarks on the latter). General distribution: Nearctic.