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Nuctenea umbratica Female Nuctenea umbratica. (Found: Nyköping Sörmland Sweden. 2005 ) Male Nuctenea umbratica. (Found: Nyköping Sörmland Sweden. Sep 2007 ) Female Nuctenea umbratica, head-on view. (Found: Nyköping Sörmland Sweden. 2005 ) Male Nuctenea umbratica, head-on view. (Found: Nyköping Sörmland Sweden. Sep 2007 ) Female Nuctenea umbratica. (Found: Nyköping Sörmland Sweden. 2005 ) Close-up of the eyes of a male Nuctenea umbratica from above. (Found: Nyköping Sörmland Sweden. Sep 2007 ) Young Nuctenea umbratica upside down. Notice the two light dots under the abdomen. (Found: Nyköping Sörmland Sweden. 2006 ) Male Nuctenea umbratica from below. (Found: Nyköping Sörmland Sweden. Sep 2007 ) Palps of a male Nuctenea umbratica. (Found: Nyköping Sörmland Sweden. Sep 2007 )

Facts: Family: Araneidae Scientific name: Nuctenea umbratica Common name: Walnut orb-weaver The Walnut orb-weaver, Nuctenea umbratica, is quite flat. It hides under cracks in the bark of trees during the days and spins a small orb web in the night. It can sustain as low temperatures as minus 19 degrees Celsius.

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Disclaimer. I am a photograper, not an arachnologist. Allthough I spend a lot of time on spider identification, I can not give a 100% guarantee on the id of the spiders.