H. perplexa Christiansen & Bellinger, 1980
– Achorutes macgillivrayi Folsom, 1916: 488, nec Dalla Torre, 1895
– Hypogastrura (Hypogastrura) perplexa Christiansen & Bellinger, 1980: 124
AK Christiansen & Bellinger 1980, 1998; Fjellberg 1985; Skidmore 1995; Babenko & Fjellberg 2006
NT Rusek 1994; Babenko & Fjellberg 2006
BC Cannings 2010
ON James 1933; Maynard 1951 both as macgillivrayi; Christiansen & Bellinger 1980, 1998; Skidmore 1995
General distribution: Nearctic.