Money Spider (Erigone dentipalpis)

Autor:

Martin Cooper from Ipswich, UK

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https://czwiki.cz/b/e3567

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Wikimedia Commons

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2731 x 2048 Pixel (1038322 Bytes)

Popis:

Only a few mm long, money spiders launch themselves into the air on threads of gossamer. If one lands on you, it is said to be a lucky sign that you will be coming into money. This one was found in a flower of the Castor Oil plant ( Fatsia japonica) in my garden (Ipswich, East Suffolk, TM166450) on 10 November 2015. The majority of these small spiders are in the family Linyphiidae, a huge family of hundreds of species that make up about 40% of the spiders in Britain. My Locket and Millidge British Spiders book has a key to the family which relies on the position of hairs and spines on various segments of the legs. I found it really difficult to see the relevant characteristics through my microscope. However, a hopeful web search led me to a photo of an example of the genus Erigone which resembled my specimen. My book includes some detailed drawings of the male palps (or at least parts of them) of various Erigone species, and the nearest match I could find was Erigone dentipalpis, which presumably means "toothed palps". Unfortunately there are other species, such as E promiscua, which also have teeth on their palps. Paul Lee (Suffolk Spider Recorder) couldn't be certain of the species from my photos but, after examining the spider, he confirmed that it was indeed Erigone dentipalpis.

Licence:

CC BY 2.0

Credit:

Money Spider (Erigone dentipalpis)

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