AraneaeEuctenizidae – Wafer-lid trapdoor spiders

Stanford Hills Trapdoor Spider

Aptostichus stanfordianus

This record describes Aptostichus stanfordianus (species). Recorded family: Euctenizidae. Recorded order: Araneae.

Identification and Appearance

Stanford Hills Trapdoor Spider - Aptostichus stanfordianus
Contributed by marshal hedin

Aptostichus stanfordianus, the Stanford Hills trapdoor spider, is a species of wafer-lid trapdoor spider (Euctenizidae) endemic to California in the United States.

Wikipedia reference for Aptostichus stanfordianus: https://en.wikipedia.org/wiki/Aptostichus stanfordianus.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Euctenizidae (Wafer-lid trapdoor spiders)
Genus
Aptostichus

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

About Spiders: the wider group

Order-level background for Araneae, the group containing Aptostichus stanfordianus. 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 Stanford Hills Trapdoor Spider (3)

Stanford Hills Trapdoor Spider - photo 1
Contributed by marshal hedin
Stanford Hills Trapdoor Spider - photo 2
Contributed by marshal hedin
Stanford Hills Trapdoor Spider - photo 3
Contributed by marshal hedin

Photo credits: Contributed by marshal hedin

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

Photo credits: Contributed by marshal hedin. Contributors retain copyright over their individual contributions.