Classification
Tree [regio]Heteroptera [subordo]
Notonectidae [familia]
Notonectinae [subfamilia]
Nychia [genus]
Genus Nychia Stål, 1859 contains the following taxa:
Nychia limpida Stål, 1860 [species]
Nychia marshalli (Scott, 1872) [species]
Nychia sappho Kirkaldy, 1901 [species]