California Ebony Tarantula

Aphonopelma eutylenum · Order: Araneae · Family: Theraphosidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
California Ebony Tarantula
Photo: Chris A. Hamilton, Brent E. Hendrixson, Jason E. Bond, CC BY

Adult females can have a legspan up to about 13 cm (5 inches) and may live around 25 years, while males mature after 8 to 12 years and die about six months after reaching adulthood.

Source: Wikipedia

Where it lives

It lives in the United States, specifically California.

Source: Wikipedia

Life cycle

Females may live about 25 years, while males become mature after 8 to 12 years, leave their burrows to find mates, and die roughly six months after adulthood.

Source: Wikipedia

Where it comes from

The species is native to California in the United States.

Source: Wikipedia

Where it is found in the US

Recorded in 1 of 51 states and DC. Most records: California.

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

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Source: GBIF

More photos

Questions people ask

How large can a California ebony tarantula get?

Females can grow to a legspan of about 13 cm (5 inches).

Source: Wikipedia

How long do they live?

Females may live up to 25 years; males mature after 8 to 12 years and die about six months after reaching adulthood.

Source: Wikipedia

Where are California ebony tarantulas found?

They are found in California, United States.

Source: Wikipedia

Same family (Theraphosidae)

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Aphonopelma_eutylenum

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

Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-24.

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.