Don Herbison-Evans (
donherbisonevans@yahoo.com )
&
Stella Crossley

(Photo: courtesy of
Buck Richardson, Kuranda)
The caterpillars of this species have been found feeding on the leaves of aquatic plants in the genus:

The adult moths basically have white wings. The forewings have bold brown markings and orange margins. The hindwings have a broad orange margin containing some black dots and white patches.
The species has been found in :
The species has been suggested as a control agent in USA for Esthwaite Waterweed, which is pest in waterways there.
Further reading:
Dale H. Habeck and Joseph K. Balciunas
Larvae of Nymphulinae (Lepidoptera: Pyralidae) associated with
Hydrilla verticillata (Hydrocharitaceae) in North Queensland,
Australian Journal of Entomology,
Volume 44, Issue 4 (November 2005), pp 354-363.
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(updated 24 April 2011)