California common scorpion

Paruroctonus silvestrii · Order: Scorpiones · Family: Vaejovidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
California common scorpion
Photo: Trevor Van Loon, CC BY

The California common scorpion is usually under 45 mm (about 1.8 in) long. It has slender pinchers and a mottled dark gray-brown color with four brown lines on the underside of its tail. It lives in dry habitats along the California coast, where it builds and lives in burrows.

Source: Wikipedia

How to recognize it

It has skinny pinchers and a mottled dark gray-brown body. Four longitudinal brown lines run along the ventral side of its tail.

Source: Wikipedia

Size

Most individuals are a little under 45 mm (1.8 in) long.

Source: Wikipedia

Where it lives

It is found in dry areas and creates burrows to live in.

Source: Wikipedia

Where it is found in the US

Recorded in 2 of 51 states and DC. Most records: California, Oregon.

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

Same family (Vaejovidae)

Sources

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

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

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

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.