Red-Headed Ground Beetle
Amphasia interstitialis (Say, 1823)

Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Subphylum	Hexapoda
Class	Insecta
Order	Coleoptera
Family	Carabidae
Genus	Amphasia
Species	Amphasia interstitialis (Say, 1823)

Description

Diagnostic characters

Ecological class: Accidental

Distribution

Range

Known from one county in Illinois.

Continent

North America

Country

United States

States and provinces

Illinois

Counties

Illinois: Jo Daviess

Conservation and management

NatureServe

G5 Secure

National ranks

Canada: N4 Apparently Secure
United States: NNR

Subnational ranks

Ontario: S4 Apparently Secure
Quebec: SNR Unranked
South Carolina: SNR Unranked
Indiana: SNR Unranked
Rhode Island: SNR Unranked

Ranks looked up 3 September 2026. Conservation status changes, and a rank here is as current as that date and no more.

State and federal status

Not listed under the U.S. Endangered Species Act.

References

Peck, S.B. & Christiansen, K. 1990. Evolution and zoogeography of the invertebrate cave faunas of the Driftless Area of the upper Mississippi River Valley of Iowa, Minnesota, Wisconsin, and Illinois, U.S.A. Canadian Journal of Zoology 68: 73–88. doi:10.1139/z90-012

This account was last revised 6 September 2026. Conservation ranks were looked up 3 September 2026.

How to cite this account

Amphasia interstitialis (Say, 1823). Cave Biology Data Portal, account SP-1491. https://cavebiology.org/species/amphasia-interstitialis/ (accessed 22 October 2026).

Data sources and funding are listed in the Acknowledgments.

Spotted something wrong on this page? Report a correction. Accounts are compiled from many sources and corrections from people who know the group are the most useful email we get.