AraneaeTetragnathidae – Long-jawed Orb Weavers

Tetragnatha elongata

This record describes Tetragnatha elongata (species). Recorded family: Tetragnathidae. Recorded order: Araneae.

Identification and Appearance

Tetragnatha elongata - Tetragnatha elongata
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green

Not diagnostic, but can separate some species: Voucher Specimens: Female: Male: Male Palp - The conductor tappers evenly to its tip and ends in a small hook:

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Tetragnathidae (Long-jawed Orb Weavers)
Genus
Tetragnatha (Longjawed Orbweavers)

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Usually construct their webs in the shade above water.

Geographic Range

Across the US & southern Canada, though most data points are in the eastern half of the US. ( 3 )

Additional species information

Species notes from the sources

Etymology: Tetragnatha elongata Walckenaer, 1841

About Spiders: the wider group

Order-level background for Araneae, the group containing Tetragnatha elongata. Species-specific details appear above.

Group overview

As of 2023, 51,673 spider species in 136 families have been recorded, though an estimated 150,000 species exist. Spiders rank 7th in total species diversity among all organism orders. Only 0.5% of spider species pose any risk to human health.

Ecological role of the group

Spider venom contains complex peptides with diverse pharmacological activities, making them valuable for drug development research. Spiders produce up to 7 types of silk from specialized glands. Spider silk genes have been inserted into mammals and plants for biotech applications.

Economic and practical significance of the group

The global spider community kills an estimated 400-800 million tons of prey annually (2017 study). Spiders provide billions of dollars in natural pest control for agriculture. Spider silk is 5× stronger than steel of the same diameter, driving a biomaterials research industry.

Recorded sources for this group: World Spider Catalog, PNAS, Nature, ScienceDirect. Imported estimates may describe particular regions or reporting periods.

Explore Araneae families and species →

Photos of Tetragnatha elongata (5)

Tetragnatha elongata - photo 1
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green
Tetragnatha elongata - photo 2
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green
Tetragnatha elongata - photo 3
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green
Tetragnatha elongata - photo 4
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green
Tetragnatha elongata - photo 5
Contributed by Lynette Elliott; Additional contributions by Nathaniel Green

Photo credits: Contributed by Lynette Elliott; Additional contributions by Nathaniel Green

Frequently Asked Questions About Tetragnatha elongata

What is Tetragnatha elongata?

Tetragnatha elongata is a species in the family Tetragnathidae, within the order Araneae.

How big is Tetragnatha elongata?
FeatureDetails
FemaleLength 8.2-13.2 mm
MaleLength 5.0-10.5 mm
How do you identify Tetragnatha elongata?

Not diagnostic, but can separate some species: Voucher Specimens: Female: Male: Male Palp - The conductor tappers evenly to its tip and ends in a small hook:

Where is Tetragnatha elongata found?
FeatureDetails
HabitatUsually construct their webs in the shade above water.
RangeAcross the US & southern Canada, though most data points are in the eastern half of the US. ( 3 )

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Lynette Elliott; Additional contributions by Nathaniel Green. Contributors retain copyright over their individual contributions.