Pseudalmenus
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The silky hairstreak or chlorinda hairstreak (''Pseudalmenus chlorinda'') 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 ...
belonging to the family
Lycaenidae Lycaenidae is the second-largest family of butterflies (behind Nymphalidae, brush-footed butterflies), with over 6,000 species worldwide, whose members are also called gossamer-winged butterflies. They constitute about 30% of the known butterfl ...
. The species was first described by
Emile Blanchard Emil or Emile may refer to: Literature *''Emile, or On Education'' (1762), a treatise on education by Jean-Jacques Rousseau * ''Émile'' (novel) (1827), an autobiographical novel based on Émile de Girardin's early life *''Emil and the Detective ...
in 1848. It occurs 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 ...
. It is the only species in the
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispec ...
genus ''Pseudalmenus'', described by
Hamilton Herbert Druce Hamilton Herbert Charles James Druce (1869 – 21 June 1922) was an English entomologist who specialised in Lycaenidae and to a lesser extent Hesperiidae. He is not to be confused with his father, the English entomologist Herbert Druce (1846– ...
in 1902.


Taxonomy

Subspecies include: * ''P. c. chlorinda'' is found in
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
. * ''P. c. myrsilus'' is found in a restricted area of south-east Tasmania. It is classified as rare under the Tasmanian Threatened Species Protection Act 1995. * ''P. c. zephyrus'' is found in eastern Victoria * ''P. c. fisheri'' is found in the
Grampians National Park The Grampians National Park commonly referred to as The Grampians, is a national park located in the Grampians region of Victoria, Australia. The Jardwadjali name for the mountain range itself is Gariwerd. The national park is situated betwee ...
, Victoria * ''P. c. chloris'' is found around Katoomba and
Mittagong Mittagong () is a town located in the Southern Highlands of New South Wales, Australia, in Wingecarribee Shire. The town acts as the gateway to the Southern Highlands when coming from Sydney. Mittagong is situated at an elevation of . The town ...
,
New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
* ''P. c. barringtonensis'' is found in the area of
Barrington Tops Barrington Tops is part of the Great Dividing Range in New South Wales, Australia, between Gloucester and Scone. In 1934, the area was difficult to access and was described as being "not traceable to any man-made feature". Part of the area has ...
, New South Wales


Description

The adult silky hairstreak has a wingspan of 28 mm. The male and female are similar, with the wings of the female slightly more rounded. The wings are black or brown on top with yellow-orange patches. The lower wings have orange patches and black tails with white edges. The underside of the wings is yellow grey with black and orange markings. The eggs are pale green with a diameter about 1 mm. They are usually laid in small groups on the twigs of a food plant. The caterpillars grow to a length of around 3 cm. They have a black head and a brown, red, black and yellow body. The larvae of the silky hairstreak secrete substances that attract '' Anonychomyrma biconvexa'' ants.


Distribution and habitat

It is found in south-eastern
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 ...
including
New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
,
Victoria Victoria most commonly refers to: * Victoria (Australia), a state of the Commonwealth of Australia * Victoria, British Columbia, provincial capital of British Columbia, Canada * Victoria (mythology), Roman goddess of Victory * Victoria, Seychelle ...
and
Tasmania ) , nickname = , image_map = Tasmania in Australia.svg , map_caption = Location of Tasmania in AustraliaCoordinates: , subdivision_type = Country , subdi ...
. The species only occurs where the attendant ant species is found, and the larval food plant grows. The caterpillars feed on various ''
Acacia ''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus na ...
'' species including the '' A. dealbata'', '' A. decurrens'', '' A. elata'', '' A. mearnsii'', '' A. melanoxylon'', '' A. obtusata'', '' A. pravissima'', '' A. terminalis'' and the '' A. trachyphloia''.


See also

*
Papilionidae Swallowtail butterflies are large, colorful butterflies in the family Papilionidae, and include over 550 species. Though the majority are tropical, members of the family inhabit every continent except Antarctica. The family includes the larges ...
*
List of butterflies of Tasmania Tasmania is located south of the mainland of Australia, separated from the state of Victoria by the 240 km wide Bass Strait. Although Tasmania shares most of its fauna with the southern parts of Australia or Australia as a whole, Tasmania's ...


References


External links

{{Taxonbar , from=Q3409552 Theclinae Taxa named by Émile Blanchard Butterflies described in 1848 Butterflies of Australia