Bug FAQCalosoma alternans
Calosoma alternans · Order: Coleoptera · Family: Carabidae
No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Adult beetles hunt the moth larvae Alabama argillacea and Spodoptera frugiperda.
Source: Wikipedia
What it eats
Adults prey on the caterpillars of Alabama argillacea and Spodoptera frugiperda.
Source: Wikipedia
Where it comes from
Its range includes Central and South America.
Source: Wikipedia
Where it is found in the US
Recorded in 9 of 51 states and DC. Most records: Texas, Alabama, Louisiana, Florida, North Carolina, Tennessee, Massachusetts, Missouri.
AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL
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/Calosoma_alternans
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-24 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-23.