<P> Peacock Spiders (Maratus spp .) are endemic to Australia . Peacock Spider males extend brilliantly coloured fans and wave their legs in a display for their female partners . Their fans are flaps and fringes on the sides of the abdomen, normally folded away, are inflated and spread wide when displaying . Presently the Australian peacock spiders are assigned to two genera, Maratus Karsch 1878 and Saratus Otto & Hill 2017 . Whereas only a single species of Saratus has been described, the genus Maratus includes a diverse variety of at least 59 described species endemic to Australia . </P> <P> The anomalus group includes relatives of M. anomalus that can be distinguished by the presence of a blunt, bifurcated apex of the outer ring of the embolus above a shorter, sharply pointed inner apex of the male pedipalp . The female epigynum has heavily sclerotized (darker) ducts at the lateral and medial posterior margin of each fossa . </P> <P> The calcitrans group is widely distributed in eastern Australia with many colourful species . Davies and Żabka (1989) figured a male M. ottoi from the vicinity of Brisbane, but did not give it a name . The most widely distributed species is M. plumosus, first found near Sydney . The male M. plumosus is also the most atypical of the group, with feathery plumes that it extends to the rear above its elevated and partly expanded fan . Males of all other species in the group inflate their spinnerets as they display to females . All members of the group have an asymmetric display in which they alternately extend or kick one leg III to one side, then the other leg III to the other side . </P> <P> The chrysomelas group includes the widely - distributed M. chrysomelas and the closely related M. nigromaculatus that is known only from the southern coast of Queensland . M. chrysomelas can be found in the arid interior and the tropical north . The fimbriatus group has been found at a number of locations in the grazed interior of New South Wales . The closely related M. licunxini was collected at Carnarvon Station Homestead in the interior of Queensland . These spiders are quite different from any other known Maratus, and their display includes the use of extended legs I . The harrisi group includes two closely related species with a lobate or rounded flap on either side of the fan . The discovery and later rediscovery of M. harrisi by Stuart Harris was the subject of an award - winning documentary entitled Maratus: A Documystery . </P>

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