Arachnids of North Carolina
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View Clubionidae Members: NC Records

Elaver excepta - a sac spider


Male
Taxonomy
Order: ARANEAEInfraorder: AraneomorphaeFamily: Clubionidae                                                                                 
Comments: Described as Clubiona pallens, Hentz, 1847, but that epithet was preoccupied and the species renamed excepta. The genus Elaver was formally revalidated by Brescovit, Bonaldo & Mikhailov, 1994.
Identification
Online Description/Photos: Dusky heartmark anterior to chevrons markings on a grayish-tan abdomen. Trapezoidal-shaped, dusky markings laterad to chevrons. Metatarsi and tarsi darker than other leg segments. BugGuide Google, iNaturalist, Wikipedia, GBIFTechnical Description: Edwards, R. J. (1958). The spider subfamily Clubioninae of the United States, Canada and Alaska (Araneae: Clubionidae). Bulletin of the Museum of Comparative Zoology 118: 365-436. (as Clubionoides e.)
Total Length: Females 6.7-7.4mm, males 4.5-6.5Adult ID: identifiable by photo
Structural Features: Females have an epigynal scape attached at its anterior end, unique to this species among the members of this genus.
Structural photos

Species-unique epigynal scape (photo by Carol Tingley)
Distribution in North Carolina
Comments: East coast to Great Plains; Quebec to Florida.
County Map: Clicking on a county returns the records for the species in that county.
Adult phenology:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge
Habitats and Life History
Habitats: old field, deciduous forest, taken by Kaston (1948) on pine trees.
Observation Methods:
Abundance/Frequency:
Behavior: Nocturnal hunter, often hides in silk "cocoons" under dead leaves, loose bark, and stones.
Status in North Carolina
Natural Heritage Program Status:
Natural Heritage Program Ranks:
State Protection:
Comments:

 Photo Gallery for Elaver excepta - a sac spider

Photos: 25

Recorded by: Mark Basinger on 2024-04-09
Wilson Co.
Comment: 		Recorded by: Mark Basinger on 2024-04-09
Wilson Co.
Comment:
Recorded by: Brian Bockhahn on 2023-10-16
Dare Co.
Comment: 		Recorded by: Mark Basinger on 2023-09-06
Wilson Co.
Comment:
Recorded by: Mark Basinger on 2023-09-06
Wilson Co.
Comment: 		Recorded by: Brian Bockhahn on 2023-08-01
Buncombe Co.
Comment:
Recorded by: Brian Bockhahn on 2023-07-14
Hyde Co.
Comment: 		Recorded by: Brian Bockhahn on 2023-06-27
Wilson Co.
Comment:
Recorded by: Brian Bockhahn on 2023-06-17
Avery Co.
Comment: 		Recorded by: Brian Bockhahn on 2022-08-06
Buncombe Co.
Comment:
Recorded by: Brian Bockhahn, J. Thomson on 2021-12-05
Macon Co.
Comment: 		Recorded by: Carol Tingley on 2021-06-06
Durham Co.
Comment:
Recorded by: Carol Tingley on 2021-06-06
Durham Co.
Comment: See close-up of epigynum and its unique scape in "Structural photos," above.		Recorded by: Brian Bockhahn, C. Bowers, H. Anderson, J. Brown on 2021-04-21
Cumberland Co.
Comment:
Recorded by: Brian Bockhahn, C. Bowers, H. Anderson, J. Brown on 2021-04-21
Cumberland Co.
Comment: 		Recorded by: Brian Bockhahn on 2021-04-21
Cumberland Co.
Comment:
Recorded by: R. Newman on 2021-04-05
Carteret Co.
Comment: 		Recorded by: R. Newman on 2020-11-24
Carteret Co.
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Recorded by: Brian Bockhahn on 2020-10-27
New Hanover Co.
Comment: 		Recorded by: Carol Tingley on 2019-10-31
Bladen Co.
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Recorded by: Carol Tingley on 2019-10-31
Bladen Co.
Comment: 		Recorded by: Brian Bockhahn on 2017-03-29
Cumberland Co.
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Recorded by: Brian Bockhahn on 2015-06-18
Avery Co.
Comment: 		Recorded by: Brian Bockhahn on 2011-07-30
Wake Co.
Comment:
Recorded by: Brian Bockhahn on 2010-05-10
Wake Co.
Comment: