Double-fringed or Guenée's Emerald
(previously known as Chlorochroma dichloraria)
GEOMETRINAE, GEOMETRIDAE, GEOMETROIDEA
(Photo: courtesy of Jenny Holmes, Great Western, Victoria)
This caterpillar is a streaky green and brown. Its head has a pair of blunt horns. At rest, the caterpillar stands up at an angle looking like a twig. The caterpillar feeds on various Wattles ( MIMOSACEAE ) including
The pupa is brown, with dark lines on the developing wing areas, and dark spiracles along the abdomen.
The adult is green, and has two faint white zig-zag lines across each wing. The marginal wing fringes are orange tipped with pink. The forewing costas are pale orange on top and pink underneath. The hindwing margins are rounded. There is a yellow dorsal line on the abdomen. The collar around the head is red. Because of the predominant green colour, this and related species of moths are called 'Emeralds'. The moth has a wingspan of about 3 cms.
The species is found in :
Further reading :
Ian F.B. Common,
Moths of Australia,
Melbourne University Press, 1990, pl. 11.24, p. 374.
Pat and Mike Coupar,
New South Wales University Press, Sydney 1992, p. 41.
Uranides et Phalénites,
in Boisduval & Guenée:
Histoire naturelle des insectes; spécies général des lépidoptères,
Volume 9, Part 9 (1857), p. 365, No. 577, and also Plate 6, fig. 8.
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. 136-137.
Moths of Victoria: Part 4,
Emeralds and Allies - GEOMETROIDEA (B),
Entomological Society of Victoria, 2012, pp. 34-35.
(updated 4 July 2013, 18 November 2018, 7 February 2019, 15 November 2020)