The Yellow-spot 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 along the eastern coast of 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...

 and 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....

.

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 25 mm. Adults are brown. Both sexes have a large yellow patch in the centre of each forewing. The underside is white with a row of black dots along the wing margins, two dots under the centre of each forewing and three dots under each hindwing.

The larvae have been recorded feeding on Pimelea

Pimelea

Pimelea is a genus of plants belonging to the family Thymelaeaceae. There are about 80 species in the genus, native to Australia and New Zealand. Many of the species are poisonous to cattle.Selected species...

species, including Pimelea colorans, Pimelea latifolia, Pimelea linifolia

Pimelea linifolia

Pimelea linifolia is an Australian shrub, variously known as Queen-of-the-bush and the Slender or Flax-leafed Riceflower. It is widespread throughout the south and east of the continent and is toxic to livestock....

and Pimelea ligustrina. They are green with white hairs, dark green diagonal stripes, yellow lateral lines and a pale brown head. Pupation takes place in a brown pupa with a length of about 10 mm which is made in leaf debris at the base of the host plant.