Maratus volans

Gliding spider
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Arachnida
Order:	Araneae
Suborder:	Araneomorphae
Family:	Salticidae
Genus:	Maratus
Species:	M. volans
Binomial name
Maratus volans (O. P-Cambridge, 1874)
Synonyms
Saitis volans Maratus amoenus

The Peacock spider or Gliding spider (Maratus volans) is a species of jumping spider.

Description

Octavius Pickard-Cambridge noted in his original description that "it is difficult to describe adequately the great beauty of the colouring of this spider".

The red, blue and black colored males have flap-like extensions of the abdomen with white hairs that can be folded down. They are used for display during mating: the male raises his abdomen, then expands and raises the flaps so that the abdomen forms a white-fringed, circular field of color. The species, and indeed the whole genus Maratus have been compared to peacocks in this respect. The third pair of legs is also raised for display, showing a brush of black hairs and white tips. While approaching the female, the male will then vibrate raised legs and tail, and dance from side to side.

Both sexes reach about 5 mm in body length. Females and immatures of both sexes are brown with no distinct pattern.

Distribution

M. volans is confined to eastern parts of Australia (Queensland, New South Wales)^[1].

Name

The species name means "flying" in Latin, because it was at first thought that the flaps help the spider in gliding.

Gliding

A common urban myth is the belief that when the spider is leaping, it can use its flaps to extend the jump and glide short distances through the air. However, this belief has been debunked by the Australasian Arachnological Society.^[2][3]

Relationships

While the courtship dance is similar to those of genus Saitis (the European S. barbipes also uses its third pair of legs for display), the two genera are probably not closely related.

Footnotes

1. ^ Platnick 2009
2. ^ http://www.australasian-arachnology.org/myths/maratus_cannot_fly
3. ^ http://www.australasian-arachnology.org/download/Maratus_cannot_fly.pdf

See also

• Saitis barbipes - an European jumping spider bearing superficial similarities, but likely no close phylogenetic relationship

References

• Ed Nieuwenhuis: Peacock spider
• Platnick, Norman I. (2009): The world spider catalog, version 9.5. American Museum of Natural History.

• David Edwin Hill 2009: "Euophryine jumping spiders that extend their third legs during courtship (Araneaee: Salticidia: Euophryinae: Maratus, Saitis)". Peckhamia 74(1): 1-27.

External links

• Images of M. volans, including courtship dance
• Diagnostic drawings of M. volans
• Youtube: Footage of M. volans mating dance