Red & Black Spider – Nicodamus peregrinus

red and black spider

Habitat and Biology: 

In summer, male Nicodamus peregrinus spiders leave their web, during daylight hours, and wander in search of females. This wandering habit often brings them indoors. Due to the red and black colour, the spider is often confused with the red-back spider and, as red is a common warning colour, the spider is sometimes thought to be highly venomous. The egg case has a woolly appearance and is suspended in the web.

Colour:

Female: Body and legs commonly bright red, abdomen black, but varying orange to dark red, sometimes with a bluish tinge.

Male: Similar to female.

Form:

Typically a small spider with slender legs, most easily recognised by colour pattern as described above.

red and black spider
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Body Length:

Male: 10mm
Female: 12mm

Web type:

A few irregular strands built under bark, stones or logs.

Bite:

Despite the red colour of this spider its venom is not dangerous. At most, it may cause a local reaction around the bite site. Normal precautions, as outlined in the introduction, should be observed.

Museum Victoria

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Information and pictures were taken from children’s projects and where credited to that child does not claim to be original information. Where possible, permission to reproduce has been sought. Any infringement of copyright is purely unintentional.

Red & Black Spider – Nicodamus peregrinus

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