Eupanacra splendens (Rothschild, 1894)
(one synonym : Panacra salomonis Clark, 1920)
MACROGLOSSINAE,   SPHINGIDAE,   BOMBYCOIDEA
 
Don Herbison-Evans,
(donherbisonevans@outlook.com)
and
Stella Crossley

Eupanacra splendens
(Photo: courtesy of Sandra Cathcart, Kuluin, Queensland)

The Caterpillars of this species are green, sometimes with grey markings. The caterpillars have an enlarged flap of skin on the thorax. The last abdominal segment is abruptly flat, and carries a strong green and grey backward curving horn that ends in an abrupt point, but is quite harmless.

Eupanacra splendens
(Photo: courtesy of Byron Roberts, Maroochydore, Queensland)

When the caterpillar is disturbed, the flap of skin on the thorax is stretched out revealing a pair of eyespots on the first abdominal segment. Often, a white line runs from the head to each eyespot.

The caterpillars have been found feeding on plants in ARACEAE, including :

  • Devil's Ivy ( Epipremnum aureum ), and
  • Peace Lily ( Spathiphyllum species ).

    Eupanacra splendens
    pupa
    (Photo: courtesy of Tali Fairholm, Maroochydore, Queensland)

    The caterpillars can grow to a length of about 10 cms. The pupa is mottled grey, and formed amongst the roots of its foodplant, in a messy flimsy cocoon. The pupa has a length of about 5 cms.

    Eupanacra splendens
    (Photo: courtesy of Buck Richardson, Kuranda, Queensland)

    The adult moths have patchy greenish or purplish brown forewings each a lot of squiggly dark lines, and two white chevrons by the wingtip. The forewing margins consist of two concave curves meeting at a cusp about halfway along. The hindwings are dark brown, crossed by a broad orange band. The moths have a wingspan of about 5 cms.

    Eupanacra splendens
    (Photo: courtesy of Ken Thomason, Brisbane, Queensland)

    In its resting posture: the moth curves its abdomen under its body. Then one may suspect it is then the face of a fearsome monster, with the knobs each side of the thorax as eyes, the thorax as the nose, and the lateral bands on the abdomen as a mouth with teeth. Maybe this deters predators, or maybe only amuses imaginative humans.

    Eupanacra splendens
    (Specimen: courtesy of the The Australian Museum)

    The species is found in the south-west Pacific, including

  • Moluccas,
  • Papua, and
  • Solomons,

    as well as in Australia in

  • Queensland.

    Eupanacra splendens
    underside
    (Photo: courtesy of Graeme Cocks, Townsville, Queensland)


    Further reading :

    Ian F.B. Common,
    Moths of Australia,
    Melbourne University Press, 1990, pl. 16.13, p. 413.

    Buck Richardson,
    Tropical Queensland Wildlife from Dusk to Dawn Science and Art,
    LeapFrogOz, Kuranda, 2015, p. 197.

    Lionel Walter Rothschild,
    Notes on Sphingidae, with descriptions of new species,
    Novitates Zoologicae,
    Volume 1, Number 1 (1894), p. 82, and also Plate 5, fig. 15.


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    (updated 22 April 2013, 24 June 2018, 22 April 2019)