Desert Recluse

Loxosceles deserta · Order: Araneae · Family: Sicariidae

Venomous. The desert recluse can bite and its venom may cause serious skin lesions.

Source: Wikipedia

Desert Recluse
Photo: Ken-ichi Ueda, CC BY

Desert recluse spiders have six equal eyes and a uniformly colored, hairy abdomen. They live in desert wild areas of the southwestern US and northwestern Mexico, especially near native vegetation and pack-rat dens, and are rarely found in homes. Their bite can produce necrotic skin lesions similar to those of the brown recluse.

Source: UC IPM, Wikipedia

How to recognize it

Desert recluse spiders have six eyes of equal size arranged in three pairs. Their abdomen is covered with fine hairs and is a uniform color from light beige to dark brown.

Source: UC IPM

Is it a pest in the house?

It is rarely a household pest, appearing only near native desert vegetation and not in urban settings.

Source: Wikipedia, UC IPM

Does it bite or sting?

A bite from the desert recluse can cause skin lesions due to its venom. The effects are produced by the same mechanism as the brown recluse bite. Many lesions are misdiagnosed as brown recluse bites, which can lead to serious consequences.

Source: Wikipedia, UC IPM

How to get rid of it

If a recluse spider is found in California, it is most likely the desert recluse. Identifying Loxosceles species requires a high-magnification microscope and an arachnologist’s expertise.

Source: UC IPM

Where it lives

They live in wild desert habitats and are only found near native vegetation, avoiding urban areas and lawns. Populations are especially dense in pack-rat dens.

Source: Wikipedia

Where it comes from

The desert recluse is native to the United States and Mexico.

Source: Wikipedia

Lookalikes

It is often mistaken for L. unicolor of South America or the brown recluse (L. reclusa), which do not occur in its range. Spitting spiders (Scytodes spp.) have a similar six-eye pattern and can be confused with recluse spiders. Common tan or gray spiders with dark head markings are also frequently misidentified as true recluse spiders.

Source: Wikipedia, UC IPM

Where it is found in the US

Recorded in 6 of 51 states and DC. Most records: California, Arizona, Nevada, New Mexico, Kansas, Utah.

Darker = more records. Counts are museum and citizen-science records, not population size.

Source: GBIF

Status: native in North America; native in United States. Source: iNaturalist

Months it is reported in the US

JFMAMJJASOND

Source: GBIF

More photos

Questions people ask

Do desert recluse spiders bite?

Yes, their bite can cause necrotic skin lesions similar to those of the brown recluse.

Source: Wikipedia

How can I tell a desert recluse apart from a brown recluse?

Desert recluses live in desert wild areas of the southwestern US and Mexico, while brown recluses are not found in California; also, accurate species ID needs a microscope and expert analysis.

Source: Wikipedia, UC IPM

Where are desert recluse spiders found?

They are native to the United States and Mexico, especially in desert regions of southern California, Nevada, Arizona, New Mexico, and Utah.

Source: Wikipedia

What spiders are commonly confused with the desert recluse?

They are often misidentified as L. unicolor, the brown recluse, spitting spiders, or common tan/gray spiders with dark head markings.

Source: Wikipedia, UC IPM

Same family (Sicariidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Loxosceles_deserta
  • UC IPM: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7468.html

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.

How this page works

This is one bug's fact sheet. The colored box at the top says whether it is dangerous. Sections below cover how to recognize it, whether it is a pest, and how to deal with it. The US map shows which states have records; tap a state to see other bugs there.

Every fact on Bug FAQ comes from a named source (university extension sites, government agencies, GBIF, iNaturalist, Wikipedia). The source is linked next to each section. If we have no source for something, we leave it out.