Theretra indistincta Butler, 1877
(formerly known as Choerocampa indistincta)
MACROGLOSSINAE,   SPHINGIDAE,   BOMBYCOIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Theretra indistincta
(Photo: courtesy of Peter Lawrence, Ku-ring-gai Chase, New South Wales)

The Caterpillars of this species are smooth and green, and each segment has blue spiracles and a pair of yellow-edged green spots with pale centres, The last segment has a short thick reddish backward curving horn with a black tip. The true legs are pink.

Theretra indistincta
late instar

Later instars develop a patchy grey skin.

The caterpillars feed on various plants in VITACEAE, including

  • Slender Grape, and
  • Cultivated Grape.

    Theretra indistincta
    pupa

    The caterpillars can grow to a length of about 6 cms. The caterpillars pupate under the soil.

    Theretra indistincta
    (Photo: courtesy of David Fischer, Mission Beach, Queensland)

    The adult moths have brown forewings, each with a vague dark band across the middle. The hindwings are each dark brown shading to white at the margin. The wingspan is about 10 cms.

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

    The species has been found in

  • New Guinea,

    as well as in Australia in

  • Western Australia,
  • Northern Territory,
  • Queensland, and
  • New South Wales.

    Theretra indistincta
    underside
    (Photo: courtesy of David Fischer, Mission Beach, Queensland)


    Further reading :

    Arthur G. Butler,
    Descriptions of several African and Australian Lepidoptera in the collection of the British Museum,
    The Annals and Magazine of Natural History,
    Series 4, Volume 19 (1877), p. 460, No. 5.


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    (written 22 October 2018, updated 27 April 2026)