Diasemiopsis ramburialis is a moth of the family Crambidae. It occurs in most of Europe and the tropics, including the Azores, Fiji, New Zealand and Australia. It is scarce migrant in Britain.
Description The wingspan is 17–22 mm.
Taxonomy This species was first described by Philogène Auguste Joseph Duponchel in 1834 and originally named Hydrocampa ramburialis.
Hosts The larvae have been shown to feed on the water fern species Azolla filiculoides.
References