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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Long-jawed Orb Weavers (Tetragnathidae) » Longjawed Orbweavers (Tetragnatha) » Silver Longjawed Orbweaver (Tetragnatha laboriosa)

Species Tetragnatha laboriosa - Silver Longjawed Orbweaver

Classification · Synonyms and other taxonomic changes · Explanation of Names · Size · Identification · Range · Habitat · Remarks · Print References · Internet References · Works Cited

Long-jawed Orb Weaver - Tetragnatha laboriosa - male

Tetragnatha laboriosa Hentz, 1850 - male - Tetragnatha laboriosa - male

tiny long-jawed orbweaver - Tetragnatha laboriosa - female

Lateral view, habitus - Tetragnatha laboriosa - male

Tetragnatha laboriosa--voucher image - Tetragnatha laboriosa - male

Silver Longjawed Orbweaver - Tetragnatha laboriosa - female

T. laboriosa male - Tetragnatha laboriosa - male

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Chelicerata (Chelicerates)

Class Arachnida (Arachnids)

Order Araneae (Spiders)

Infraorder Araneomorphae (True Spiders)

No Taxon (Entelegynae)

Family Tetragnathidae (Long-jawed Orb Weavers)

Genus Tetragnatha (Longjawed Orbweavers)

Species laboriosa (Silver Longjawed Orbweaver)

Synonyms and other taxonomic changes

See the World Spider Catalog

Explanation of Names

Tetragnatha laboriosa Hentz, 1850

Size

Female: Length 5.2-9.0 mm(1)

Male: Length 3.8-7.4 mm(1)

Identification

Not diagnostic, but can separate some species:(1)

Lateral eyes as far apart as medians.

Female

Male

Range

All across the US and Canada

Habitat

Often found in fields, but lives in many habitats.

Remarks

Laboriosa has silvery patches on abdomen and the lateral eyes are distinctly separated from each other. The carapace marks are straight, diverging lines. Actually, the carapace pattern (which Levi doesn't mention) is just about the most reliable of all.

~ R. Crawford

Print References

Levi, H.W. 1981. The American orb-weaver genera Dolichognatha and Tetragnatha north of Mexico (Araneae: Araneidae, Tetragnathinae). Bulletin of the Museum of Comparative Zoology, 149(5): 271-318. (Species Description)(1)

Internet References

World Spider Catalog

GBIF(2)

iNaturalist

BOLD Systems(3)

ITIS(4)

Works Cited

1.	The American Orb-Weaver Genera Dolichognatha and Tetragnatha North of Mexico Levi, Herbert W. 1981. Bulletin of the Museum of Comparative Zoology, 149(5):271-318.

2.	Global Biodiversity Information Facility (GBIF)

3.	BOLD: The Barcode of Life Data Systems

4.	Integrated Taxonomic Information System (ITIS)

Contributed by Lynette Elliott on 4 September, 2007 - 11:23pm
Additional contributions by kschnei, pfeiffer, Nathaniel Green
Last updated 9 February, 2021 - 2:17pm

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