Junonia orithya (Linnaeus, 1758)
(previously known as : Precis orithya)
Blue Argus
or Blue Pansy
NYMPHALINAE NYMPHALIDAE

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

(updated 9 May 2008)

The Caterpillars of this species are black with yellow dots, an orange metathorax, and an orange nose. They are are covered in branched hairs. They have been found feeding on various plants from three families such as :

  • Snapdragons ( Antirrhinum majus, PLANTAGINACEAE ),
  • Hilo Princess ( Angelonia salicariaefolia, SCROPHULARIACEAE ), and
  • Clock Vine ( Thunbergia alata, ACANTHACEAE ).

    When not feeding, the Caterpillar rests hidden at the base of the foodplant.

    The pupa is dark brown with two pale bands. It hangs by a silk cremaster on or near the foodplant.

    Junonia orithya
    Hong Kong 1979

    The adult butterflies have black forewings with white marks, and blue hind wings. Underneath, they have a brown pattern. Each wing has two eyespots on both the upper and lower surfaces. The wingspan is about 4 cms.

    Junonia orithya

    Various races of this species are found from Africa to the Philippines, including :

  • Singapore, and
  • Swaziland,
  • Thailand,

    as well as albicincta in the

  • tropical north of Australia.


    Further reading :

    Michael F. Braby,
    Butterflies of Australia, CSIRO Publishing, Melbourne 2000, vol. 2, pp. 573-574.


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