The African blue flycatcher is thought to form a
superspecies with the
white-tailed blue flycatcher and these species; the two have been placed in a separate genus
Errannornis, but the differences between this species pair and the other species classified in
Elminia are considered insufficient to merit generic separation. Two
subspecies of the African blue flycatcher are currently recognised.
Elminia longicauda longicauda (Swainson, 1838) which is found in the western part of its range as far east as Nigeria, and the paler
Elminia longicauda teresita Antinori, 1864 in the west and the south. ==References==