Endoxyla leucomochla (Turner, 1915)
(previously known as : Xyleutes leucomochla)
Witjuti, Witchedy, Wichetty, Witchety, witchjetti or Witchetty Grub
ZEUZERINAE , COSSIDAE

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

(updated 28 April 2009)


(Photo: courtesy of Paul & Linda Speirs)

The Caterpillars of this species live in tunnels in the ground. They feed on sap from the roots of :

  • Wichetty Bush ( Acacia kempeana, MIMOSACEAE ), and
  • Small Cooba ( Acacia ligulata, MIMOSACEAE ).


    (Photo: courtesy of Margaret Milamba)

    The animal is cylindrical, white, and has a brown head. It and the Caterpillars of several other related species have been used as food and as medicine by Australian Aborigines, and are important subjects in Aboriginal Art. The Caterpillars are usually eaten cooked, and a number of modern recipes for them have been devised.


    Digging out larval tunnels around roots of Wijuti Bush

    The Caterpillar grows to a length of about 7 cms.

    It pupates inside its tunnel.


    (Photo: courtesy of Donald Hobern, Aranda)

    The adult is a large finely mottled grey moth, with wings suffused with rusty red towards the bases, and with a wingspan of about 16 cms. It has degenerate mouthparts, and so cannot feed. It relies for energy totally on the nourishment taken in by the Caterpillar earlier in its life.


    (Photo: courtesy of Vanessa Mack, Macleay Museum, University of Sydney)

    The species has been found inland, including:

  • Australian Capital Territory,
  • Victoria, and
  • Western Australia.

    Many people have wondered about rearing the Caterpillars commecially. This could be possible if one could catch a gravid female, and provide the Caterpillars with an artificial food medium, perhaps like the bark/clover/carrot diet given by Rachel A. Allan et al. for rearing Wiseana copularis.


    Further reading :

    Ian F.B. Common,
    Moths of Australia, Melbourne University Press, 1990, p. 271.

    Paul Zborowski and Ted Edwards,
    A Guide to Australian Moths, CSIRO Publishing, 2007, pp. 94-95.


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