AraneaeAnyphaenidae – Ghost Spiders

Anyphaena pacifica

This record describes Anyphaena pacifica (species). Recorded family: Anyphaenidae. Recorded order: Araneae.

Identification and Appearance

Anyphaena pacifica - Anyphaena pacifica
Contributed by Lynette Elliott; Additional contributions by cheins

Palp (ventral/lateral) Epigynum (ventral/dorsal dissected)

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Anyphaenidae (Ghost Spiders)
Genus
Anyphaena

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

Habitat and Range

Geographic Range

This species occurs from British Columbia south to California and eastward to Montana and New Mexico.

Additional species information

Species notes from the sources

Etymology: Author of the name: Banks. Year first published: 1896.

About Spiders: the wider group

Order-level background for Araneae, the group containing Anyphaena pacifica. 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 Anyphaena pacifica (5)

Anyphaena pacifica - photo 1
Contributed by Lynette Elliott; Additional contributions by cheins
Anyphaena pacifica - photo 2
Contributed by Lynette Elliott; Additional contributions by cheins
Anyphaena pacifica - photo 3
Contributed by Lynette Elliott; Additional contributions by cheins
Anyphaena pacifica - photo 4
Contributed by Lynette Elliott; Additional contributions by cheins
Anyphaena pacifica - photo 5
Contributed by Lynette Elliott; Additional contributions by cheins

Photo credits: Contributed by Lynette Elliott; Additional contributions by cheins

Frequently Asked Questions About Anyphaena pacifica

What is Anyphaena pacifica?

Anyphaena pacifica is a species in the family Anyphaenidae, within the order Araneae.

How do you identify Anyphaena pacifica?

Palp (ventral/lateral) Epigynum (ventral/dorsal dissected)

Where is Anyphaena pacifica found?

Range: This species occurs from British Columbia south to California and eastward to Montana and New Mexico.

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

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