Bug FAQGround beetle
Calosoma peregrinator · Order: Coleoptera · Family: Carabidae
Calosoma peregrinator is a ground beetle called the traveling caterpillar hunter. It lives in grasslands and pastures of Mexico and the southern United States, where adults hunt caterpillars and overwinter underground.
Source: Wikipedia
How to recognize it
Calosoma peregrinator is a ground beetle called the traveling caterpillar hunter.
Source: Wikipedia
Where it lives
It lives in grasslands and pastures of Mexico and the southern United States.
Source: Wikipedia
What it eats
Adult beetles hunt and eat caterpillars.
Source: Wikipedia
Life cycle
Adults overwinter in underground cavities before emerging to feed on caterpillars.
Source: Wikipedia
Where it comes from
Its range includes Mexico and the southern United States.
Source: Wikipedia
Where it is found in the US
Recorded in 15 of 51 states and DC. Most records: Arizona, New Mexico, Texas, Colorado, California, Kansas, Utah, Iowa.
Darker = more records. Counts are museum and citizen-science records, not population size.
Source: GBIF
Status: native in North America. Source: iNaturalist
Months it is reported in the US
Source: GBIF
More photos
Questions people ask
Where can I find Calosoma peregrinator?
They are found in grasslands and pastures of Mexico and the southern United States.
Source: Wikipedia
Same family (Carabidae)
Sources
- Wikipedia: https://en.wikipedia.org/wiki/Calosoma_peregrinator
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.