Spilosoma urticae, the water ermine, is a moth of the family Erebidae. It is found in temperate belt of the Palearctic ecozone like similar Spilosoma lubricipedum, but prefer more dry biotopes. So, S. urticae is more abundant in steppes and it is the single Spilosoma species in Central Asia. The larvae feed on Rumex hydrolapathum, Mentha aquatica, Iris pseudacorus, Lysimachia vulgaris, Jacobaea vulgaris and Pedicularis sylvatica.