AraneaeSicariidae

Texas Recluse

Loxosceles devia

This record describes Loxosceles devia (species). Recorded family: Sicariidae. Recorded order: Araneae.

Identification and Appearance

Texas Recluse - Loxosceles devia
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins

Coloration more variable than that of L. reclusa , with same dark pattern on carapace but this often reduced to dusky Y-shaped marking.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Arachnida
Order
Araneae (Spiders)
Genus
Loxosceles (Brown Spiders)

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

Habitat and Range

Geographic Range

The southwestern tip of Texas (and in Mexico).

Additional species information

Species notes from the sources

Etymology: Authors of the name: Gertsch & Mulaik. Year first published: 1940.

About Spiders: the wider group

Order-level background for Araneae, the group containing Loxosceles devia. 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 Texas Recluse (5)

Texas Recluse - photo 1
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins
Texas Recluse - photo 2
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins
Texas Recluse - photo 3
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins
Texas Recluse - photo 4
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins
Texas Recluse - photo 5
Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins

Photo credits: Contributed by Lynette Elliott; Additional contributions by Jeff Hollenbeck , cheins

Frequently Asked Questions About Texas Recluse

What is Texas Recluse?

Texas Recluse (Loxosceles devia) is a species in the family Sicariidae, within the order Araneae.

How do you identify Texas Recluse?

Coloration more variable than that of L. reclusa , with same dark pattern on carapace but this often reduced to dusky Y-shaped marking.

Where is Texas Recluse found?

Range: The southwestern tip of Texas (and in Mexico).

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

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