– Isotoma Anglicana Lubbock, 1862: 596
NT Babenko, unpubl.
NU Hogg & Hebert 2004
MB Porco et al. 2014
Remarks: As adult and subadult specimens of I. anglicana are almost identical to those of I. mackenziana, differing only by fewer number of tergal sensilla (Fjellberg 2003), all records of both species should be taken with caution. The two species appear to be sympatric at least in some parts of Northern Canada; we have seen both forms in material from Banks Island but only mackenziana from Prince Patrick Island.
General distribution: Holarctic.