Long-jawed orb weaver

Last updated

Long-jawed orb-weavers
Temporal range: Cretaceous–present
Metellina mengei (aka).jpg
Metellina mengei
Long-jawed orb-weaver spider (Tetragnatha montana) female.jpg
Tetragnatha montana , female
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Tetragnathidae
Menge, 1866
Diversity
45 genera, c. 1,000 species
Tetragnathidae range map.svg
blue: reported countries (WSC)
green: observation hotspots (iNaturalist)

Long-jawed orb weavers or long jawed spiders (Tetragnathidae) are a family of araneomorph spiders first described by Anton Menge in 1866. [1] They have elongated bodies, legs, and chelicerae, and build small orb webs with an open hub with few, wide-set radii and spirals with no signal line or retreat. Some species are often found in long vegetation near water. [2]

Contents

Systematics

Opadometa fastigata in Kerala Opadometa fastigata of Kadavoor.jpg
Opadometa fastigata in Kerala
Mating behaviour of Tetragnatha montana
Pair of silver long-jawed orb weaver spiders interacting, laying silk and losing the cranefly they were consuming to ants.

As of October 2025, this family includes 45 genera: [3]

Fossil genera

Several extinct, fossil genera have been described: [4]

Formerly placed here

See also

A few spiders in this family include:

References

  1. Menge, Anton (1866). "Preussische Spinnen. Erste Abtheilung". Schriften der Naturforschenden Gesellschaft in Danzig (N.F.). 1.
  2. Gould, John; García, Luis Fernando; Valdez, Jose. W. (March 2023). "Water webbing: Long‐jawed spider (Araneae, Tetragnathidae) produces webs that touch the surface of ephemeral waterbodies". Ethology. 129 (3): 182–185. doi: 10.1111/eth.13355 .
  3. "Family: Tetragnathidae Menge, 1866". World Spider Catalog. doi:10.24436/2 . Retrieved 2025-10-09.
  4. Dunlop, J. A., Penney, D. & Jekel, D. 2018. A summary list of fossil spiders and their relatives. In World Spider Catalog. Natural History Museum Bern, online at http://wsc.nmbe.ch, version 19.0, accessed on 7 October 2018.