Marbled Orbweaver

Araneus marmoreus

General Status Rank: 
Undetermined
ELCODE: 
ILARA81010
Common Name: 
Marbled Orbweaver
Scientific Name: 
Araneus marmoreus
Synonyms: 
Aranea tusigia
Epeira insularis
Epeira obesa
Aranea raji
Epeira raji
Naming References: 
B161
R197
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Taxonomy
Group: 
Arachnid (Spider)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Arachnida
Order: 
Araneae
Family: 
Araneidae
General Biology

Female Age at Maturity

Males are mature from late July to October, females from August to November. Wiehle (1931) collected specimens from fir and pine trees at heights of 50-80 cm above the ground; he inferred these individuals to have matured in a single summer after they overwintered as tiny hatchlings in the egg sac (in Dondale et al. 2003).
Habitat
Frequent in tall grass and shrubs in meadows and marshes, but are sometimes found in open forests.
References: 
B161
Distribution

Ecozones

Taiga Plains
References: 
B161

Distribution

Alaska to Newfoundland, south to Oregon, Utah, southern Texas, and South Carolina; Europe, Asia. In the NWT, species records are from the Sahtu, Yellowknife, and south of Great Slave Lake (Dondale et al. 2003, GBIF).
References: 
HSS001

Number of Occurrences

Seven occurrences in total: one in Hay River, one on the south shore of Great Bear Lake, two in Fort Smith, one in Norman Wells, and two in Yellowknife (Dondale et al. 2003, GBIF). Reference: (1) Dondale, C.D., Redner, J.H., Paquin, P., & Levi, H.W. 2003. The Insects and Arachnids of Canada. Part 23. The Orb-weaving Spiders of Canada and Alaska (Araneae: Uloboridae, Tetragnathidae, Araneidae, Theridosomatidae). NRC Research Press, Ottawa, ON. 371 pp. (2) https://www.gbif.org/occurrence/search?country=CA&taxon_key=2159970&gadm_gid=CAN.6_1.
References: 
W034
B161
HSS001
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
Species is probably widespread and common in the NWT but currently too poorly known to be ranked accurately.
S Rank: 
SU
Decision Process Description: 
Rank drafted by S. Cannings, M. Anions, P. Paquin, D. Buckle, and R. Bennett. Rank reviewed in 2014 and 2023 by R. Bennett; no change from Undetermined.
Last Updated: 
July 18, 2024
Status Designations

Canada – Assessment by Committee on the Status of Endangered Wildlife in Canada

COSEWIC Status: 
-

References

Ecozones

  • Dondale, C.D., J.H. Redner, P. Paquin, and H.W. Levi (2003) The Insects and Arachnids of Canada, Part 23, The Orb-Weaving Spiders of Canada and Alaska, Araneae: Uloboridae, Tetragnathidae, Araneidae, Theridiosomatidae. NRS Research Press ENR Library QL 434.52.A1I5 pt.23 - B161 Return

Habitat

  • Dondale, C.D., J.H. Redner, P. Paquin, and H.W. Levi (2003) The Insects and Arachnids of Canada, Part 23, The Orb-Weaving Spiders of Canada and Alaska, Araneae: Uloboridae, Tetragnathidae, Araneidae, Theridiosomatidae. NRS Research Press ENR Library QL 434.52.A1I5 pt.23 - B161 Return

Naming

  • Dondale, C.D., J.H. Redner, P. Paquin, and H.W. Levi (2003) The Insects and Arachnids of Canada, Part 23, The Orb-Weaving Spiders of Canada and Alaska, Araneae: Uloboridae, Tetragnathidae, Araneidae, Theridiosomatidae. NRS Research Press ENR Library QL 434.52.A1I5 pt.23 - B161 Return
  • Bennett, Robb (2010) DRAFT LIST OF SPIDERS IN CANADA Phylum Chelicerata; Class Arachnida; Order Araneae. - R197 Return

Number of Occurrences

  • Shorthouse, D. Editor (2007) The Nearctic Spider Database. WWW Electronic Publication http://canadianarachnology.dyndns.org/data/canada_spiders/ - W034 Return
  • Dondale, C.D., J.H. Redner, P. Paquin, and H.W. Levi (2003) The Insects and Arachnids of Canada, Part 23, The Orb-Weaving Spiders of Canada and Alaska, Araneae: Uloboridae, Tetragnathidae, Araneidae, Theridiosomatidae. NRS Research Press ENR Library QL 434.52.A1I5 pt.23 - B161 Return
  • Bennett R. in Hebert, R. (2014) A set of 2 e-mails GS Spiders with ranks poposed by Robb Bennett (09/05/2014). e copy - HSS001 Return

Range Extent

  • Bennett R. in Hebert, R. (2014) A set of 2 e-mails GS Spiders with ranks poposed by Robb Bennett (09/05/2014). e copy - HSS001 Return