Which spider is this?

Dear, I just noticed this spider on the underside of the roof. She appears to have double front legs. Is she native and harmless?

Asker: Karl, 34 years old

Answer

Hi Carl,

You have found the very beautiful Pisaura mirabilis, the so-called maternity web spider. It’s so named because it makes a web in which she lays her egg sac and in which the young spiders spend their first days. It is a true hunting spider and therefore does not use a web to catch prey. It is a very common spider in our (non-millimeter) gardens. Spiders have eight legs. The double front legs you see are just the first two pairs. Like 99% of native spiders, she is completely harmless.

Kind regards,

Rudy

Answered by

Dr Rudy Jocque

Arachnology Zoology Biodiversity

Royal Museum for Central Africa
Leuvensesteenweg 13 3080Tervuren
http://www.africamuseum.be

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