The Blotched Blue is a species of butterfly

Butterfly

A butterfly is a mainly day-flying insect of the order Lepidoptera, which includes the butterflies and moths. Like other holometabolous insects, the butterfly's life cycle consists of four parts: egg, larva, pupa and adult. Most species are diurnal. Butterflies have large, often brightly coloured...

 of the Lycaenidae

Lycaenidae

The Lycaenidae are the second-largest family of butterflies, with about 6000 species worldwide, whose members are also called gossamer-winged butterflies...

 family. It is found in southern Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

, including Queensland

Queensland

Queensland is a state of Australia, occupying the north-eastern section of the mainland continent. It is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean...

, New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

, Victoria

Victoria (Australia)

Victoria is the second most populous state in Australia. Geographically the smallest mainland state, Victoria is bordered by New South Wales, South Australia, and Tasmania on Boundary Islet to the north, west and south respectively....

, Tasmania

Tasmania

Tasmania is an Australian island and state. It is south of the continent, separated by Bass Strait. The state includes the island of Tasmania—the 26th largest island in the world—and the surrounding islands. The state has a population of 507,626 , of whom almost half reside in the greater Hobart...

, South Australia

South Australia

South Australia is a state of Australia in the southern central part of the country. It covers some of the most arid parts of the continent; with a total land area of , it is the fourth largest of Australia's six states and two territories.South Australia shares borders with all of the mainland...

 and Western Australia

Western Australia

Western Australia is a state of Australia, occupying the entire western third of the Australian continent. It is bounded by the Indian Ocean to the north and west, the Great Australian Bight and Indian Ocean to the south, the Northern Territory to the north-east and South Australia to the south-east...

.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

 is about 20 mm. Adults are brown with a blue sheen. The underside is fawn with brown shading and rows of dark dashes.

The larvae have been recorded feeding inside the flower buds of Cassytha

Cassytha

Cassytha L. is a genus of 17 species of parasitic vines in the family Lauraceae, mainly native to Australia, but with a few species in Africa, southern Asia, and one Cassytha L. (1753) is a genus of 17 species of parasitic vines in the family Lauraceae, mainly native to Australia, but with a few...

species, including Cassytha glabella

Cassytha glabella

Cassytha glabella, commonly known as the Slender Devil's Twine, is a common twining plant of the Laurel family, found in many of the moister parts of Australia. A hemi-parasitic climber. The specific epithet glabella is from Latin, referring to the lack of hairs. The fruit are sweet and mucousy to...

, Cassytha filiformis, Cassytha peninsularis and Cassytha pubescens

Cassytha pubescens

Cassytha pubescens the Devil's Twine is a common twining plant of the Laurel family, in southern and eastern Australia. A hemi-parasitic climber....

. They are green with yellow lines. The pupa is narrow and brown with a few black spots.