Hygraula nitens (Butler, 1880)
(formerly known as Paraponyx nitens)
Pond Moth
ACENTROPINAE,   CRAMBIDAE,   PYRALOIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Hygraula nitens
(Drawing: courtesy of Ian Common, from Moths of Australia)

The Caterpillars of this species live underwater. The filaments protruding from the body are not hairs but gills for breathing underwater. The caterpillars have been found in stagnant fresh water inland and in brackish estuaries on the coast. They live in a portable protective case made of bits of plant. They feed on such underwater plants as :

  • Water Milfoil ( Myriophyllum species, HALORAGACEAE ),
  • Canadian Pondweed ( Elodea canadensis, HYDROCHARITACEAE ),
  • Curly Pondweed ( Potamogeton crispus, POTAMOGETONACEAE ), and
  • Sea Grass ( Zostera species, ZOSTERACEAE )

    In still water, the caterpillars have been observed to wriggle a great deal. This may be to keep the water moving around the gills to ensure an adequate oxygen supply.

    Hygraula nitens

    The adults have brown forewings with white markings and patchy buff coloured hindwings. They have a wingspan of about 1.5 cms.

    Hygraula nitens
    (Specimen: courtesy of the Macleay Museum, University of Sydney)

    The species is found in

  • New Zealand,

    and over most of Australia, including

  • Queensland,
  • New South Wales,
  • Australian Capital Territory,
  • Victoria,
  • Tasmania,
  • South Australia, and
  • Western Australia.


    Further reading :

    Arthur G. Butler,
    On a collection of Lepidoptera Heterocera from Marlborough Province, New Zealand,
    Cistula Entomologica,
    Volume 2 (1880), p. 556, No. 67 (40).

    Ian F.B. Common,
    Moths of Australia,
    Melbourne University Press, 1990, fig. 33.1, pp. 346, 352.

    Peter B. McQuillan, Jan A. Forrest, David Keane, & Roger Grund,
    Caterpillars, moths, and their plants of Southern Australia,
    Butterfly Conservation South Australia Inc., Adelaide (2019), p. 84.

    Paul Zborowski and Ted Edwards,
    A Guide to Australian Moths,
    CSIRO Publishing, 2007, p. 129.


    previous
    back
    caterpillar
    Australian
    Australian Butterflies
    butterflies
    Australian
    home
    Lepidoptera
    Australian
    Australian Moths
    moths
    next
    next
    caterpillar

    (updated 8 June 2011, 7 November 2018, 3 April 2019, 9 November2020)