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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Orb Weavers (Araneidae) » Micrathena » Arrowshaped Micrathena (Micrathena sagittata)

Species Micrathena sagittata - Arrowshaped Micrathena

Representative Images

Spider - Micrathena sagittata Arrowshaped Micrathena - Micrathena sagittata Micrathena sagittata - Arrowshaped Micrathena - Micrathena sagittata - male Arrowshaped Micrathena - Micrathena sagittata - female Arrowshaped Micrathena - Micrathena sagittata - female Micrathena sagittata - Arrowshaped Micrathena - Micrathena sagittata - male more spiders at Jean's - Micrathena sagittata Arrow-shaped Micrathena (Micrathena sagitatta) - Micrathena sagittata

Classification

Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Araneomorphae (True Spiders)
No Taxon (Entelegynae)
Family Araneidae (Orb Weavers)
Genus Micrathena
Species sagittata (Arrowshaped Micrathena)

Synonyms and other taxonomic changes

See the World Spider Catalog.

Explanation of Names

Micrathena sagittata (Walckenaer, 1841)
sagittata (L). "arrowed, in the form of an arrow"

Size

Female 8-9mm, Male 4-5mm (1)

Identification

Female: three pairs of pointed tubercles on the abdomen, with the rear pair large and spreading to give the abdomen a triangular look. Tubercles are black-tipped and red at the base. The center of the dorsum is yellow. Male abdomen does not have spines, widest at rear. (1)

Palp:

Range

e. US to Texas and Nebraska. (1)

Habitat

Builds webs in open woods. (1)

Remarks

Web often has a short stabilimentum above the hub. (1)
This spider does not pose a danger to humans (and neither do any others in this family).

Print References

Kaston, p. 133-134 & Figures 334, 335 (1)
Spiders & Their Kin, p. 67 (2)

Internet References

Enciclovida. In Spanish

Works Cited

1.How to Know the Spiders
B. J. Kaston. 1978. WCB/McGraw-Hill.
2.Spiders and Their Kin: A Golden Guide from St. Martin's Press
Herbert W. Levi, Lorna R. Levi, Nicholas Strekalovsky. 2001. St. Martin's Press.
Contributed by Troy Bartlett on 16 February, 2004 - 1:20pm
Additional contributions by Mike Boone, Hannah Nendick-Mason, Beatriz Moisset, cheins, Chuck Entz, Mike Quinn, kschnei
Last updated 4 February, 2023 - 8:24am

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