The Ringed China-mark (Parapoynx stratiotata)
is a species of moth
of the family Crambidae
. It is found in Europe
The wingspan is 20-24 mm for the males and 28-30 mm for the females. The moth flies from May to September depending on the location.
The larvae feed on Nymphaea alba, Potamogeton, Callitriche, Ceratophyllum demersum, Elodea canadensis, Nuphar lutea and Stratiotes.