Puneet Varma (Editor)

Missulena occatoria

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Kingdom
  
Class
  
Family
  
Scientific name
  
Missulena occatoria

Rank
  
Species

Subphylum
  
Infraorder
  
Genus
  
Missulena

Phylum
  
Order
  
Spider

Missulena occatoria wwwarachneorgaudbaseuplMissulenaoccatoria

Similar
  
Missulena, Missulena bradleyi, Actinopodidae, Atrax, Actinopus

Red headed mouse spider missulena occatoria


Missulena occatoria, known as the red-headed mouse spider, is found in Southern Australia, from open forests to desert shrublands. It is the largest (females up to 24 mm, males up to 12 mm) and most widely distributed Missulena species, because the spiderlings are wind-dispersed (ballooning). Normally this only occurs with araneomorph spiders, mygalomorph spiders normally disperse by walking. Missulena venom may be very toxic, but few cases of serious envenomation have been recorded. Most recorded bites only caused minor effects, with Australian funnel-web spider antivenom having proved effective as a treatment.

Contents

Missulena occatoria Missulena occatoria Walckenaer 1805 Redheaded Mouse Spider

The spiders dig a burrow up to 55 cm deep, with two trapdoors.

While the females are black with a red tinge, the males have a bright red head and jaws, and a gunmetal blue-black abdomen.

Missulena occatoria Missulena occatoria Walckenaer 1805 Redheaded Mouse Spider

seven legged red headed mouse spider missulena occatoria


Taxonomy

Missulena occatoria Redheaded Mouse Spider Missulena occatoria

Missulena occatoria was first described by Charles Athanase Walckenaer in 1805. There has been some confusion between this species and Missulena insignis. For example, H. Womersley in 1943 regarded Actinopus formosus as a synonym of M. occatoria, whereas Barbara York Main in 1985 treated it as a synonym of M. insignis, the position adopted by the World Spider Catalog. She considered that Womersley had partly confused M. occatoria and M. insignis, with M. occatoria only occurring in eastern Australia. According to Framenau et al., M. occatoria and M. insignis cannot be differentiated based on the original description.

Missulena occatoria Missulena occatoria group male Minnivale WA Redheaded Mouse

Missulena occatoria Missulena occatoria Wikipedia

References

Missulena occatoria Wikipedia