Nymphula nitidulata, the beautiful china-mark, is a species of moth of the family Crambidae described by Johann Siegfried Hufnagel in 1767. It is found in Europe, Japan (Hokkaido), Turkey, Armenia, Russia (including Ural, Siberia, Amur) and China.[1]
The wingspan is 20–25 mm. The forewings are white; costaledge and sometimes a subcostal line dark fuscous ; a curved dark fuscous subbasal line ; lines and transverse discal spots strongly outlined with dark fuscous, sometimes partly brownish, first curved, second indented below middle, connected by a prolongation with discal spot and first line, lines sometimes also connected on dorsum; a yellow-ochreous dark-margined terminal streak. Hindwings as forewings, but lines narrower, not connected, subbasal absent, discal mark oblique, narrow, dark fuscous, usually touching first line The larva is bright yellow or brownish-yellow ; dorsalline dark brownish ; head pale brown.[2]
The larvae feed on Sparganium and Nuphar lutea.