Lace webbed spider

Lace webbed spider is a name given to two common species of house spiders of the genus Amaurobius; A. similis and A. fenestralis. The spiders are often found near windows, hence the Latin root of the name A. fenestralis, with A. similis later defined as a separate, but similar, species, and being named accordingly. Lace webbed spiders vary in body...
Found on http://en.wikipedia.org/wiki/Lace_webbed_spider
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