X. armatus Axelson, 1903
– Xenyllodes armatus Axelson, 1903a: 4
AK MacLean et al. 1978; Christiansen & Bellinger 1980, 1998; Fjellberg 1985; Skidmore 1995; Babenko & Fjellberg 2006 YT Hammer 1953
NT Hammer 1953; Danks 1981; Skidmore 1995; Babenko & Fjellberg 2006
NU Hammer 1953
BC Battigelli & Marshall 1993, cf.; Setälä & Marshall 1994; Skidmore 1995; Addison et al. 2003; Cannings 2010
QC Chagnon et al. 2001
MB Hammer 1953; Skidmore 1995; Porco et al. 2014
NF Skidmore 1995
General distribution: Holarctic.