Geographic Location: AK: Fort Richardson (Hammer 1955a); Fairbanks Region (Behan 1978a); YT: Porcupine Plain; Ogilvie Mtns (Behan-Pelletier 1997b); NT: Yellowknife (Hammer 1952a); AB: ABMI Sites (Meehan et al. 2019); MB: Churchill (Hammer 1952a); QC: northern region; Timmins 54°60’N, 67°00’W (Behan 1978a).
Habitats: muskeg.
Distribution: Holarctic.
Remarks: This species was considered a junior synonym of M. monodactylus (Michael, 1888) by Subías (2004), but was retained as a distinct species by Colloff (2013).