Hyalobathra unicolor (Warren, 1895)
Cotton Web Sphinner
(formerly known as Isocentris unicolor)
PYRAUSTINI,   PYRAUSTINAE,   CRAMBIDAE,   PYRALOIDEA
 
Don Herbison-Evans,
(donherbisonevans@yahoo.com)
and
Stella Crossley


(Photo: Don Herbison-Evans)

The Caterpillar is brown with a pair of warts on the back of each segment. It has a brown head with rusty markings. It lives gregariously between leaves of its food plant joined together with silk.

It grows to a length of about 2 cms, and pupates in its leafy shelter.


(Photo: Don Herbison-Evans)

The adult of this species is a pale brown colour with faint dark zig-zag lines across the wings, and a narrow black line along each wing margin. It also has a small transparent window at the base of each hindwing, which is characteristic of all species in the genus Hyalobathra. The moth has a wingspan of about 2 cms.

It has been found in

  • Queensland, and
  • New South Wales.

    In the past: specimens of this species have been confused with Hyalobathra illectalis, which does not occur in Australia.


    Further reading :

    Hari Sutrisno and Marianne Horak,
    Revision of the Australian species of Hyalobathra Meyrick (Lepidoptera: Pyraloidea: Crambidae: Pyraustinae) based on adult morphology and with description of a new species,
    Australian Journal of Entomology,
    Volume 42, Number 3 (August 2003), pp. 233248.

    William Warren,
    New Genera and Species of Pyralidae, Thyrididae, and Epiplemidae,
    Annals and Magazine of Natural History,
    Series 6, Part 16 (1895), p. 472.


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    (updated 24 February 2004, 8 August 2020)