Great Plains Giant Tiger Beetle

Amblycheila cylindriformis · Order: Coleoptera · Family: Carabidae

Also called: Giant Great Plains Tiger Beetle

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Great Plains Giant Tiger Beetle
Photo: iNaturalist user, CC0

The Great Plains giant tiger beetle is a flightless, nocturnal beetle that lives on the grasslands of the Great Plains, reaching as far north as far-southwestern South Dakota.

Source: Wikipedia

Where it lives

It can be found walking on bare ground at night and is often caught in pitfall traps; its larvae make tunnels in Colby silt loam soil.

Source: Wikipedia

When you see it

The beetle is active at night and lives in the grasslands of the Great Plains, with the northernmost limit in far-southwestern South Dakota.

Source: Wikipedia

Where it comes from

Its genus is represented by several species in the United States and additional species in Mexico.

Source: Wikipedia

Where it is found in the US

Recorded in 12 of 51 states and DC. Most records: Colorado, New Mexico, Kansas, Texas, Oklahoma, South Dakota, Arizona, Nebraska.

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

Same family (Carabidae)

Sources

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

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

Text written 2026-10-25 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-25.

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.