Orvasca aliena (Butler, 1886)
(previously known as : Euproctis aliena)
LYMANTRIIDAE ,   NOCTUOIDEA
 
Don Herbison-Evans
(donherbisonevans@outlook.com)
and
Stella Crossley


(Photo: courtesy of Graeme Cocks, Townsville)

This Caterpillar is yellow, with rows of black spots containing white dots along its length, and a red spot on each of the penultimate two segments. Each black spot has a bunch of hairs sticking out from it. A pair of black hair pencils stand out near the head like a pair of horns. The caterpillar has been found on :

  • Peach tree ( Prunus persica, ROSACEAE ),
  • Wattle ( Acacia species, MIMOSACEAE ), and
  • Cultivated Grape ( Vitis vinifera, VITACEAE ).

    On the grapes, they feed on the stems of the bunches of fruit, seemingly only eating the fruit as a last resort.


    (Photo: courtesy of Trevor Jinks, North Burnett)

    On grapes: pupation occurs in a pale brown cocoon spun on its foodplant. In captivity, it pupated in a sparse cocoon at the bottom of its container.


    (Photo: courtesy of Graeme Cocks, Townsville)

    The adult moths have white wings, with the males having a brown leading edge to the forewings. The abdomen is deep yellow, and hairy. The thorax is brown. The moths have prominent black eyes, and both sexes have feathery antennae. The moths have a wingspan of about 2 cms.


    (Specimen: courtesy of the The Australian Museum)

    The species has been found in Townsville, North Burnett, and Bundaberg, in

  • Queensland.


    male, underside
    (Photo: courtesy of Graeme Cocks, Townsville)

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    (updated 26 August 2011)