The meadow argus (''Junonia villida'') is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

in the family Nymphalidae, commonly found in

Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...

and

Nelsons Island Nelsons Island or Nelson Island or Isle Legour is a small uninhabited island in the Great Chagos Bank, of the Chagos Archipelago in the Indian Ocean. As a protected nature reserve, access to the island is strictly restricted. The island is admi ...

. It is also known as Albin's Hampstead eye in the

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...

, where it has occurred only as an accidental import.

Description

The meadow argus has two brownish wings, each covered with two distinctive black and blue eyespots as well as white and orange marks that appear on the edge of the wings. The eyespots are a defense mechanism that are not only used to frighten predators away, but also to confuse the predators into thinking that the eyespots are the target, allowing the butterfly to escape with only a small part of the wing being lost. The underside of the wings are mainly unmarked, except the lower part of the forewing has similar markings as the upperside. The wingspan measures 4 centimetres (1.6 in) in males and 4.3 centimetres (1.7) in females. As the butterfly rests, it can sit in four different positions depending on the current situation. These positions include: * If the sun is shining, the butterfly will open and relax its wings * If danger approaches while in the sunlight the butterfly will open its wings further revealing eyespots on its hindwings * If the sun is not shining the butterfly will close its wings * If danger approaches while there is no sunlight the butterfly will raise its frontwings revealing hidden eyespots

Distribution and habitat

The meadow argus can be found mainly on the Australian mainland, as well as in

Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...

, Kangaroo Island,

Lord Howe Island Lord Howe Island (; formerly Lord Howe's Island) is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, part of the Australian state of New South Wales. It lies directly east of mainland P ...

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ...

Norfolk Island Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...

Fiji Fiji ( , ,; fj, Viti, ; Fiji Hindi: फ़िजी, ''Fijī''), officially the Republic of Fiji, is an island country in Melanesia, part of Oceania in the South Pacific Ocean. It lies about north-northeast of New Zealand. Fiji consists ...

Papua New Guinea Papua New Guinea (abbreviated PNG; , ; tpi, Papua Niugini; ho, Papua Niu Gini), officially the Independent State of Papua New Guinea ( tpi, Independen Stet bilong Papua Niugini; ho, Independen Stet bilong Papua Niu Gini), is a country i ...

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

Tuvalu Tuvalu ( or ; formerly known as the Ellice Islands) is an island country and microstate in the Polynesian subregion of Oceania in the Pacific Ocean. Its islands are situated about midway between Hawaii and Australia. They lie east-northeast ...

Samoa Samoa, officially the Independent State of Samoa; sm, Sāmoa, and until 1997 known as Western Samoa, is a Polynesian island country consisting of two main islands (Savai'i and Upolu); two smaller, inhabited islands (Manono Island, Manono an ...

and

Cook Islands ) , image_map = Cook Islands on the globe (small islands magnified) (Polynesia centered).svg , capital = Avarua , coordinates = , largest_city = Avarua , official_languages = , lan ...

. They reside in urban areas, forests, woodlands, and grasslands, though they are uncommon during the winter months. Every year during October or November, the butterflies migrate from southern Australia to warmer areas in the north. Meadow Argus02

Early stages

Eggs

Meadow argus eggs are laid on a leaf of the food plant, shaped with sturdy vertical and horizontal ribs. The eggs usually hatch within 7 to 10 days.

Larvae

Meadow argus

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The ...

e are black with short thin spines. Meadow argus caterpillars feed on various garden plants, both native and introduced. This includes Plantago, Scrophulariaceae, Convolvulaceae,

Compositae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...

Verbenaceae The Verbenaceae ( ), the verbena family or vervain family, is a family of mainly tropical flowering plants. It contains trees, shrubs, and herbs notable for heads, spikes, or clusters of small flowers, many of which have an aromatic smell. The ...

, Porulacaceae, and

Gentianaceae Gentianaceae is a family of flowering plants of 103 genera and about 1600 species. Etymology The family takes its name from the genus '' Gentiana'', named after the Illyrian king Gentius. Distribution Distribution is cosmopolitan. Characteri ...

. This stage lasts from 4 to 5 weeks.

Pupae

Meadow argus

pupae A pupa ( la, pupa, "doll"; plural: ''pupae'') is the life stage of some insects undergoing transformation between immature and mature stages. Insects that go through a pupal stage are holometabolous: they go through four distinct stages in their ...

have various colours, though usually they are black dotted with white and reddish yellow. This stage lasts from 2 to 3 weeks.

References

{{Taxonbar, from=Q946188 Junonia Butterflies of Oceania Butterflies of Australia Lepidoptera of New Guinea Lepidoptera of Papua New Guinea Butterflies of New Zealand Butterflies described in 1787