| Filmy Dome Spider (Neriene radiata (Walckenaer, 1841)) |
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Scientific name: Neriene radiata (Walckenaer, 1841) Common name: Filmy Dome Spider French name: Order: Araneae Family: Linyphiidae Size: 3.5 to 6.5 mm for females, 5.5 mm maximum for males. Biotope: Sunny and semi-shady places, woodland edges, parks and gardens. Web: Dome-like web more or less horizontal. Many tangled strands run above to surrounding plants. Preys are knocked down by these strands and fall down on the web. Neriene radiata waits hanging upside down. Observation period: Adults are observed from May to August. Geographic area: Holarctic region. |
The cephalothorax is more or less dark brown with a broad whitish or yellowish lateral band. The abdomen is whitish with a dark and slightly toothed marking in the middle. This marking suddenly tapers and changes into a thin line on a small length close to the rear tip. The flanks are crossed with black and white or yellow. The legs are not ringed. Spiders of the Linyphia genus do not show any pale lateral band on the cephalothorax. |
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I am used to observing many dome-like webs in my garden but it is very difficult to have a look at the cephalothorax of spiders hanging there. This one may have been disturbed to see it crossing the terrace. The broad pale lateral bands on the cephalothorax and the central mark on the upper side of the abdomen tapering close to the rear, confirm the identification of the Neriene radiata species. |
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View of the lateral side of the abdomen. |
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I do not know how this male with its large pedipalps entered the house. |
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The pedipalps are even better visible on this second picture. |
André Bon March 2021
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