Green Spotted Triangle or Tailed Jay
(one synonym : Papilio mynion Fruhstorfer, 1906)
This species is probably named after Agamemnon, the great but cursed king of of Ancient Greece.
The Caterpillar of this species initially is dark green or brown with a white patch and a humped thorax. Each segment has a short soft spine on each side, and the tail has a pair of spines.
The caterpillar everts a pair of soft yellow horns from behind the head when disturbed, and produces a pungent smell.
Later instars become a spotty green, with short black horns on each segment of the thorax, and a pair of horns on the tail. In later instars: the tail horns become white, and a dark line extends along each side.
The Caterpillar feeds by day on the young leaves of various plants in ANNONACEAE, including the introduced:
and the Australian natives :
It has also been reported feeding happily on the foliage of plants in MAGNOLIACEAE including
The pupa is green with some brown markings, and is usually attached to a leaf by cremaster and girdle.
The adult butterflies have a wing span around 8 cms. The upper surfaces of the wings are black with rows of green spots, although in dead specimens, the green fades to yellow.
The underside is brown with fewer spots, some of which are green, but others are various colours including black, red, white and blue.
The eggs are pale yellow and laid singly on the leaves of a foodplant.
Various subspecies of this insect are found across south-east Asia and the Pacific Islands, including :
and the subspecies ligatum (Rothschild, 1895) occurs in
Further reading :
Michael F. Braby,
Butterflies of Australia,
CSIRO Publishing, Melbourne 2000, vol. 1, pp. 263-264.
Volume 1, Edition 10 (1760), Class 5, Part 3, p. 462, No. 21.
(updated 2 December 2010, 7 April 2017, 6 June 2020, 4 January 2021)