Chloroclystis approximata (Walker, 1869)
Plumed or Cherry Looper
(one synonym : Phryssogonus pyretodes Meyrick, 1890)
EUPITHECIINI,   LARENTIINAE,   GEOMETRIDAE,   GEOMETROIDEA
 
Don Herbison-Evans
(donherbisonevans@yahoo.com)
and
Stella Crossley

Chloroclystis approximata
early instar
(Photo: courtesy of Merlin Crossley, Melbourne, Victoria)

Early instars of this Caterpillar are green.

Chloroclystis approximata
middle instar
(Photo: courtesy of David Akers, Won Wron, Victoria)

Later instars of this Caterpillar become yellow or pale brown, and develop dark markings like chevrons on the back and sides of each segment.

Chloroclystis approximata
later instar
(Photo: courtesy of David Akers, Won Wron, Victoria)

As the caterpillar nears maturity, the brown areas expand until the caterpillar is dark brown with pale brown or green markings.

Chloroclystis approximata
mature instar
(Photo: courtesy of David Akers, Won Wron, Victoria)

The common name of these caterpillars comes from their habit of feeding on flowers and young fruit of

  • Cherry ( Prunus avium, ROSACEAE ),

    They have also been found feeding on the flowers and buds of :

  • Apple ( Malus domestica, ROSACEAE ), and
  • various Wattles ( Acacia species, MIMOSACEAE ).

    They remain well hidden by wrapping themselves around the flowers.

    Chloroclystis approximata
    (Photo: courtesy of David Akers, Won Wron, Victoria)

    The pupa is formed in a shelter formed in amongst the flowers.

    Chloroclystis approximata
    male
    (Photo: courtesy of Laura Levens, Upper Beaconsfield, Victoria)

    The adults vary from green to brown or grey, with a scalloped banded pattern. The green specimens fade to grey after death. The forewings of the males have a row of pinkish hairs and a bulge on thecosta.

    Chloroclystis approximata
    male
    (Photo: courtesy of Peter Marriott, Moths of Victoria: Part 3)

    The females have flat wings with no tufts. Both males and females have thread-like antennae.

    Chloroclystis approximata
    female
    (Photo: courtesy of Peter Marriott, Moths of Victoria: Part 3)

    In their resting position, the moths have their wings outspread, which makes them difficult to see when resting on the bark of a tree. The moths have a wingspan of about 3 cms. The undersides are plain.

    Chloroclystis approximata
    male, showing underside, and costal tufts
    (Photo: courtesy of Laura Levens, Upper Beaconsfield, Victoria))

    The species is found in

  • Queensland,
  • New South Wales,
  • Australian Capital Territory,
  • Victoria, and
  • Tasmania.


    Further reading :

    Ian F.B. Common,
    Moths of Australia,
    Melbourne University Press, 1990, fig. 54.2, pp. 67, 377.

    Peter B. McQuillan, Jan A. Forrest, David Keane, & Roger Grund,
    Caterpillars, moths, and their plants of Southern Australia,
    Butterfly Conservation South Australia Inc., Adelaide (2019), pp. 106-107.

    Peter Marriott,
    Moths of Victoria: Part 3,
    Waves & Carpets - GEOMETROIDEA (C)
    ,
    Entomological Society of Victoria, 2011, pp. 12-13, 30-31.

    Edward Meyrick,
    Revision of Australian Lepidoptera IV,
    Proceedings of the Linnean Society of New South Wales,
    Volume 15 (Series 2, Volume 5), Part 4 (1890), p. 799.

    Francis Walker,
    Characters of undescribed Lepidoptera Heterocera,
    E.W. Janson, London, 1869, p. 79, No. 34.


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    (updated 26 February 2013, 11 May 2023)