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Crambidae

A large family containing the narrow-winged Crambinae 'grass-moths' such as the Crambus and Agriphila spp. as well as  broad-winged species such as Pyraustinae which includes the colourful Pyrausta spp..

The Crambidae have a structure in the 'ears' called the praecinctorium, which joins two tympanic membranes. This is absent from the Pyralidae.