H. pannosa (Macnamara, 1922)

– Achorutes pannosus Macnamara, 1922: 153

– Hypogastrura (Hypogastrura) essa Christiansen & Bellinger, 1980: 68

AK Christiansen & Bellinger 1980, 1998 as pannosa and essa; Fjellberg 1985; Skidmore 1995 as pannosa and essa

NT Skidmore 1995

BC Christiansen & Bellinger 1980, 1998; Skidmore 1995; Cannings 2010

ON Macnamara 1922; James 1933; Christiansen & Bellinger 1980, 1998; Skidmore 1995; Addison 1996; Stebaeva et al. 2016 Remarks: Fjellberg’s synonymization (1985) of H. essa and H. pannosa was based on examination of types of the former species. As for H. pannosa, it is not easily separable from H. assimilis, and its status requires further study.

General distribution: Nearctic.