Punctate Snail-eating Beetle

Scaphinotus punctatus · Order: Coleoptera · Family: Carabidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Punctate Snail-eating Beetle
Photo: Evrytte Carlson, CC BY

Adults have short wings and are active at night. They live in forests, along lake shores and streams, and also in dry fields. Their diet includes snails, caterpillars, berries and other beetles.

Source: Wikipedia

How to recognize it

Adults are brachypterous and nocturnal.

Source: Wikipedia

Size

Adults have reduced wings and are active at night.

Source: Wikipedia

Where it lives

They are found in forested areas. They also occur along lake shores, streams and in dry fields.

Source: Wikipedia

What it eats

They feed on snails, both live and dead caterpillars, berries and other beetles.

Source: Wikipedia

Where it comes from

Their range includes Central America and parts of North America such as Baja California and California.

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

Months it is reported in the US

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Source: GBIF

More photos

Questions people ask

What does the punctate snail-eating beetle eat?

It eats snails, caterpillars (alive or dead), berries and other beetles.

Source: Wikipedia

Same family (Carabidae)

Sources

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

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

Text written 2026-10-27 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-27.

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.