Praesusica placerodes (Turner, 1926)
(previously known as : Susica placerodes)
LIMACODIDAE,   ZYGAENOIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Praesusica placerodes
(Photo: courtesy of Christina Suttner, Wondecla, Queensland)

The Caterpillars of this species are green, and covered in rosettes of green stinging spines, interspersed with longer red and blue hair pencils, which also sting.

The caterpillars have been found feeding on

  • Sweet Leaf Tree (Symplocos cochinchinensis, SYMPLOCACEAE).

    Praesusica placerodes
    underside of caterpillar
    (Photo: courtesy of Christina Suttner, Wondecla, Queensland)

    The caterpillars have no legs, and slither along like snails. The caterpillars grow to a length of about 3.5 cms.

    Praesusica placerodes
    naked empty cocoon, leaving a 'cup' and a 'lid'
    (Photo: courtesy of Christina Suttner, Wondecla, Queensland)

    They pupate in an hard ovoid cocoon covered in leaf litter. The lid pops off for the adult to emerge.

    Praesusica placerodes
    male
    (Photo: courtesy of Buck Richardson, Kuranda, Queensland)

    The adult moths have brown forewings, each with a diagonal dark-edged pale line across the middle. The hindwings and body are brown. The wingspan of the males is about 5 cms. The wingspan of the females is about 6 cms.

    Praesusica placerodes
    natural posture
    (Photo: courtesy of Christina Suttner, Wondecla, Queensland)

    The moths adopt a curious natural posture with the abdomen pointing straight upwards.

    The species occurs in

  • Queensland.

    Praesusica placerodes
    (Photo: courtesy of CSIRO/BIO Photography Group, Centre for Biodiversity Genomics, University of Guelph)


    Further reading :

    Ian F.B. Common,
    Moths of Australia,
    Melbourne University Press, 1990, pl. 8.7, p. 303.

    Buck Richardson,
    Tropical Queensland Wildlife from Dusk to Dawn Science and Art,
    LeapFrogOz, Kuranda, 2015, p. 106.

    A. Jefferis Turner,
    Revision of Australian Lepidoptera: Drepanidae, Limacodidae, Zygaenidae,
    Proceedings of the Linnean Society of New South Wales,
    Volume 51 (1926), pp. 437-438, No. 52.


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    (updated 24 December 2010, 11 March 2023)