C. pseudarmata Folsom, 1916

– Achorutes pseudarmatus Folsom, 1916: 490

AK Fjellberg 1985; Babenko & Fjellberg 2006 as sigillata

NT Rusek 1994; Babenko & Fjellberg 2006 as sigillata

BC Spencer 1948, 1956; Maynard 1951; Christiansen & Bellinger 1980, 1998; Skidmore 1995

AB Maynard 1951; Yosii 1962; Skidmore 1995

MB McClure 1943; Hammer 1953 as sigillata; Skidmore 1995, cf.; Porco et al. 2014

QC Chagnon et al. 2001

Remarks: According to Christiansen & Bellinger (1980), Canadian records of C. sigillata by Hammer (1953) may belong to C. pseudarmata or C. brevisensillata . A probable synonymization of C sigillata and C. pseudarmata refers to Babenko et al. (1994). This synonymization obviously needs verification based on modern methods. It can also be supposed that there are two similar species: the European C. sigillata characterized by a specialized life cycle and the presence in subalpine habitats, and the boreal C. pseudarmata being widespread in Eastern Palaearctic and Nearctic.

General distribution: at least Nearctic and Eastern Palaearctic.