''Callipappus australis'', commonly known as the bird of paradise fly, is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

scale insect Scale insects are small insects of the order Hemiptera, suborder Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient grouping than the ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Callipappidae Callipappidae is a family of scales and mealybugs in the order Hemiptera Hemiptera (; ) is an order (biology), order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers ...

. It is native to Australia where it occurs in

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

and

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 ...

Description

The bird of paradise fly exhibits

sexual dimorphism Sexual dimorphism is the condition where the sexes of the same animal and/or plant species exhibit different morphological characteristics, particularly characteristics not directly involved in reproduction. The condition occurs in most ani ...

. The adult female is up to about in length and a dark bluish-black or purplish colour. It is an elongated oval in shape with a plump, domed appearance. It has three pairs of legs, but no wings. The adult male in contrast is much smaller and resembles a

fly Flies are insects of the Order (biology), order Diptera, the name being derived from the Ancient Greek, Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwing ...

. It has a slender, violet-coloured body, three pairs of legs, a pair of translucent wings and a tuft of long glassy white waxen filaments protruding from the tip of the abdomen.

Distribution

This species of scale insect is native to Australia where it occurs in Queensland and New South Wales.

Biology

Adult males and females emerge from the ground in the autumn. The female climbs up a tree, post or any other vertical surface and this is where mating takes place. After mating, the female attaches herself to a surface and invaginates her abdomen, creating a "marsupium" in which she lays a batch of eggs. She dies soon thereafter, her

cuticle A cuticle (), or cuticula, is any of a variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection. Various types of "cuticle" are non- homologous, differing in their origin, structu ...

making a leathery protective casing for the eggs. The first

instar An instar (, from the Latin '' īnstar'', "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (''ecdysis''), until sexual maturity is reached. Arthropods must shed the exoskeleton in order to grow or ass ...

nymphs, known as crawlers, descend to the ground and attach themselves to the roots of plants by inserting their piercing mouthparts. A waxen cyst forms around them. Their plant hosts include ''

Banksia ''Banksia'' is a genus of around 170 species in the plant family Proteaceae. These Australian wildflowers and popular garden plants are easily recognised by their characteristic flower spikes, and fruiting "cones" and heads. ''Banksias'' range i ...

'' and probably ''

Xanthorrhoea ''Xanthorrhoea'' () is a genus of about 30 species of flowering plants endemic to Australia. Species are known by the name grass tree. Description All are perennials and have a secondary thickening meristem in the stem. Many, but not all, sp ...

'' and other mallee, woodland and heathland plants. The feeding stages live entirely underground, sucking sap from roots, but their range of

host A host is a person responsible for guests at an event or for providing hospitality during it. Host may also refer to: Places * Host, Pennsylvania, a village in Berks County People *Jim Host (born 1937), American businessman * Michel Host ...

plants has not been fully elucidated; the type specimens were found on the trunk of ''

Angophora ''Angophora'' is a genus of nine species of trees and shrubs in the myrtle family, Myrtaceae. Endemic to eastern Australia, they differ from other eucalypts in having juvenile and adult leaves arranged in opposite pairs, sepals reduced to projec ...

'', but it is quite likely that this is not a host plant, and merely provides an elevated position for breeding activities.

References

{{Taxonbar, from=Q10439869 Scale insects Hemiptera of Australia Endemic fauna of Australia Insects described in 1890