AraneaeCorinnidae – Antmimics and Ground Sac Spiders

Castianeira dorsata

This record describes Castianeira dorsata (species). Recorded family: Corinnidae. Recorded order: Araneae.

Identification and Appearance

Castianeira dorsata - Castianeira dorsata
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn

Palp Epigynum Also, see the content associated with this specimen:

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Family
Corinnidae (Antmimics and Ground Sac Spiders)
Genus
Castianeira

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

Habitat and Range

Geographic Range

Arizona south into Mexico but BugGuide data indicates this species may occur east to Texas as well. (TX: NSR per BG data)

Additional species information

Species notes from the sources

Etymology: Castianeira dorsata (Banks)

About Spiders: the wider group

Order-level background for Araneae, the group containing Castianeira dorsata. 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 Castianeira dorsata (5)

Castianeira dorsata - photo 1
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn
Castianeira dorsata - photo 2
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn
Castianeira dorsata - photo 3
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn
Castianeira dorsata - photo 4
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn
Castianeira dorsata - photo 5
Contributed by John Sloan; Additional contributions by cheins , Mike Quinn

Photo credits: Contributed by John Sloan; Additional contributions by cheins , Mike Quinn

Frequently Asked Questions About Castianeira dorsata

What is Castianeira dorsata?

Castianeira dorsata is a species in the family Corinnidae, within the order Araneae.

How do you identify Castianeira dorsata?

Palp Epigynum Also, see the content associated with this specimen:

Where is Castianeira dorsata found?

Range: Arizona south into Mexico but BugGuide data indicates this species may occur east to Texas as well. (TX: NSR per BG data)

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

Photo credits: Contributed by John Sloan; Additional contributions by cheins , Mike Quinn. Contributors retain copyright over their individual contributions.