Overview

Comprehensive Description

umbraticaNucteneaAraneidaeAnimalia

Nuctenea umbratica (Clerck, 1757)

Materials

Type status: Other material Occurrence: recordedBy: Kuntner, Gregorič , Čandek ; sex: 1 female; Location: locationID: CH10; country: Switzerland ; locality: Bernese Alps, Kleine Scheidegg ; minimumElevationInMeters: 2061; maximumElevationInMeters: 2061; decimalLatitude: 46.5853 ; decimalLongitude: 7.9606 ; Event: eventDate: 2011-07-09 ; habitat: grassland

Type status: Other material Occurrence: recordedBy: Kuntner, Gregorič , Čandek ; sex: 1 female; Location: locationID: CH12; country: Switzerland ; locality: Bernese Alps, Nessental ; minimumElevationInMeters: 930; maximumElevationInMeters: 930; decimalLatitude: 46.7213 ; decimalLongitude: 8.3039 ; Event: eventDate: 2011-07-10 ; habitat: grassland and loan trees

Type status: Other material Occurrence: recordedBy: Kuntner, Čandek ; sex: 2 females, 1 male; Location: locationID: SI50; country: Slovenia ; locality: Sp. Praprece ; minimumElevationInMeters: 351; maximumElevationInMeters: 351; decimalLatitude: 46.1620 ; decimalLongitude: 14.6933 ; Event: eventDate: 2010-08-03/2012-05-28 ; habitat: house and surroundings

Type status: Other material Occurrence: recordedBy: Kostanjšek , RTŠB 2011 ; sex: 1 male; Location: locationID: SI68; country: Slovenia ; locality: Sv. Jurij ob Scavnici ; minimumElevationInMeters: 235; maximumElevationInMeters: 235; decimalLatitude: 46.5687 ; decimalLongitude: 16.0223 ; Event: eventDate: 2011-07-22 ; habitat: school

  • Candek, Klemen, Gregoric, Matjaz, Kostanjsek, Rok, Frick, Holger, Kropf, Christian, Kuntner, Matjaz, Miller, Jeremy A., Hoeksema, Bert W. (2013): Targeting a portion of central European spider diversity for permanent preservation. Biodiversity Data Journal 1, 980: 980-980, URL:http://dx.doi.org/10.3897/BDJ.1.e980
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Hoeksema, Bert W.

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umbraticaNucteneaAraneaeArachnidaArthropodaAnimalia

Nuctenea umbratica Clerck, 1757

Materials

Type status: Other material Occurrence: recordedBy: C. Deltshev & M. Komnenov ; sex: 1 male, 3 females; Location: country: FYR of Macedonia ; locality: Galichitsa Mt., Stenje vill., Stenjsko Blato bog ; verbatimElevation: 850 m; Event: eventDate: 17-06-2008

Distribution

European.

Notes

Previously recorded from unspecified locality between Resen and Ohrid ( Drensky 1929 , Drensky 1936 ).

  • Deltshev, Christo, Komnenov, Marjan, Blagoev, Gergin, Georgiev, Teodor, Lazarov, Stoyan, Stojkoska, Emilija, Naumova, Maria (2013): Faunistic diversity of spiders (Araneae) in Galichitsa mountain (FYR Macedonia). Biodiversity Data Journal 1, 977: 977-977, URL:http://dx.doi.org/10.3897/BDJ.1.e977
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Plazi

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Nuctenea umbratica

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 14
Species With Barcodes: 1
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Nuctenea umbratica

The Walnut Orb-weaver Spider (Nuctenea umbratica) is a spider of the Araneidae family.

Name[edit]

The species name umbratica means "living in the shadows" in Latin.

Description[edit]

Nuctenea.umbratica.edof.2.jpg

The walnut orb-weaver spider is very wide and flattened, with a leathery skin. Its color ranges from red brown and grey brown to black with a dark, yellowish to yellow-greenish leaf-like fleckled marking on its opisthosoma, where small dents are visible. These are the onsets of muscles that flatten the abdomen.

Female N. umbratica can reach up to 15 mm in size, the males grow only up to 8 mm.

The spider hides during the day outside of buildings in wall crevices, or under loose bark. They are very common in Central Europe; females occur all year long, while males appear mostly during summer. This spider has a flattened body, helping it to secrete itself in cracks and crevices. Walnut orb-weaving spiders are capable of concealing themselves in very confined spaces. This tends to act as a defensive advantage and increases the amount of locations an orb-web can be effectively constructed.

In the evening the spider constructs an orb-web that can be up to 70 cm in diameter. A signaling thread leads from the web to her hiding place. After dusk she sits in the web's center.

This spider is capable of biting humans, causing itchiness and a burning sensation followed by a red patch with white lumps.

Distribution and subspecies[edit]

References[edit]

  • Levi, Herbert Walter: The orb-weaver genera Araniella und Nuctenea (Araneae: Araneidae). in: Bulletin of the Museum of Comparative Zoology, vol. 146, no. 6, Cambridge 1974. ISSN 0027-4100
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