Children (13 direct children, 13 direct and indirect children):
Haploperla brevis
Haploperla chilnualna
Haploperla chukcho
Haploperla fleeki
Haploperla japonica
Haploperla lepnevae
Haploperla longicauda
Haploperla maritima
Haploperla orpha
Haploperla parkeri
Haploperla valentinae
Haploperla zwicki
Haploperla ussurica