Jalmenus icilius

Jalmenus icilius, the Icilius blue or amethyst hairstreak, is a butterfly of the family Lycaenidae. It is found in all mainland states of Australia, throughout much of the subtropical areas of the inland, from the Selwyn Range and from Carnarvon to Kalgoorlie. It is generally common except in the south-eastern end of its range in central and western Victoria, where it is now very scarce.

Jalmenus icilius
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Lycaenidae
Genus:	Jalmenus
Species:	J. icilius
Binomial name
Jalmenus icilius (Hewitson, [1865])
Synonyms
Ialmenus icilius Hewitson, 1865 Cupido oeneus Tepper, 1882 Ialmenus icilius mitchelli Edwards, 1951 Ialmenus icilius obscurus Edwards, 1951 Ialmenus icilius parvus Burns, 1951

The wingspan is about 30 mm.

The larvae feed on a wide range of plants, including Cassia artemisioides, Cassia nemophila, Daviesia benthamii, and the Acacia species: A. acuminata, A. anceps, A. aneura, A. dealbata, A. deanei, A. harpophylla, A. mearnsii, A. parramattensis, A. pendula, A. pycnantha, A. rubida, A. saligna and A. victoriae.

The caterpillars are attended by the ant species Iridomyrmex rufoniger.

Melbourne