Zygometis xanthogasterMilky Flower Spider (Zygometis xanthogaster)

Commonly known as the Milky Flower Spider, as seen in the following photographs from South Australia, the species Zygometis xanthogaster is actually variable in colour.

Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Belair SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Mitcham Hills SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Mitcham Hills SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug

Every year the flower spiders in the flowering Erigeron patch were completely white. This particular year 2021, they were a different colour. Whilst they are commonly known as the Milky Flower Spider, the colour variation in the species is so great it has been described under different names.

Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug
Milky Flower Spider (Zygometis xanthogaster), Hawthorndene SA © Marianne Broug

  • Scientific classification
  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Subphylum: Chelicerata
  • Class: Arachnida
  • Order: Araneae
  • Infraorder: Araneomorphae
  • Family: Thomisidae
  • Genus: Zygometis
  • Species: Zygometis xanthogaster

Footnote & References

  1. Zygometis xanthogaster, Photographs © Marianne Broug, Marianne Broug photography, https://www.mariannebrougphotography.com/
  2. Milky Flower Spider (Zygometis xanthogaster), mariannebroug, iNaturalistAU, https://inaturalist.ala.org.au/observations?place_id=6744&subview=map&taxon_id=820689&user_id=mariannebroug

Zygometis xanthogasterMilky Flower Spider (Zygometis xanthogaster)

ThomisidaeRuncinia acuminata Sidymella Sidymella hirsuta Tharrhalea sp Tharrhalea evanida Tharrhalea multopunctata Thomisus spectabilis Tmarus cinerasceus Xysticus bimaculatus Zygometis xanthogaster

SpidersIndex of Spider Images Spiders in Australia Araneidae — Orb Weavers Arkys Australian Huntsman Spider Barking Spider Black House Spider Carepalxis sp Celaenia sp Crab Spiders Deinopidae — Net-casting Spiders Dolomedes sp Dolophones sp Flower Spiders Hackled Orbweavers (Uloboridae) Jewel Spider Jumping Spider Long Jawed Spider (Tetragnatha sp) Lynx Spider (Oxyopes) Mangrovia albida Maratus volans Missulena occatoria (Red-headed Mouse Spider) Miturgidae Nicodamidae (Red and Black Spider) Ogre-faced Net-casting Spider Poltys sp (Twig Spider) Redback Spider Scorpion-tailed Spider (Arachnura higginsi) Thomisidae Tiger Spider (Trichonephila plumipes) White-spotted Swift Spider (Nyssus albopunctatus) Wolf Spider