AraneaeEuctenizidae – Wafer-lid trapdoor spiders

Sarlacc Trapdoor Spider

Aptostichus sarlacc

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

Identification and Appearance

Sarlacc Trapdoor Spider - Aptostichus sarlacc
(c) Alice Abela, all rights reserved

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 sarlacc. 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 Sarlacc Trapdoor Spider (2)

Sarlacc Trapdoor Spider - photo 1
(c) Alice Abela, all rights reserved | Contributed by Alice Abela
Sarlacc Trapdoor Spider - photo 2
(c) Alice Abela, all rights reserved | Contributed by Alice Abela

Photo credits: (c) Alice Abela, all rights reserved | Contributed by Alice Abela

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

Photo credits: (c) Alice Abela, all rights reserved | Contributed by Alice Abela. Contributors retain copyright over their individual contributions.