Beautiful Leaf Moth or Fallen-bark Looper
(erroneously : Gatrophora henricaria)
OENOCHROMINAE, GEOMETRIDAE, GEOMETROIDEA
(Photo: courtesy of Ian McMillan, Imbil, Queensland)
The Caterpillars of this species are large and brown, with a pair of protuberances on abdominal segment three. The first two pairs of prolegs are vestigial, and there are dark triangular ventral marks under those segments. There is a pattern of fine dark lines in elongated distorted loops all over the body. The caterpillars feed on the foliage of various species in MYRTACEAE, including :
The male adult moths have fawn forewings, each with a dark brown transverse line, and a prominent dark brown dot near the base of the hind margin.
The female adut moths have fawn forewings, each with a broad darker trapezoidal transverse band, and a faint dark brown dot near the base of the hind margin.
The hindwings of both sexes are orange, with a submarginal arc of black dots, and a black transverse line, and a black patch at the base.
The females have narrow filamentous antennae, and a wingspan of about 8 cms. The males are smaller, with antennae that have substantial pectinations, and have a wingspan of about 6 cms.
Underneath, each forewing is yellow with a large black patch containing a bluish-purple blotch, connected by an orange triangle to the base. The underside of each hindwing is pale brown with a large darker patch, and a submarginal arc of black dots.
The species is found over much of the south-eastern quarter of Australia, including
Further reading :
Ian F.B. Common,
Moths of Australia, Melbourne University Press, 1990, pls. 10.2, 26.12, p. 368.
in Boisduval & Guenée: Uranides et Phalénites,
Histoire naturelle des insectes; spécies général des lépidoptères,
Volume 9, Part 9 (1857), p. 187, No. 290, and also Plate 21, fig. 4.
Moths of Victoria: Part 4,
Emeralds and Allies - GEOMETROIDEA (B),
Entomological Society of Victoria, 2013, pp. 12-13.
(updated 20 June 2013, 30 January 2018)