Northern Needlefly
Zealeuctra narfi Ricker & Ross, 1969

Taxonomy

Kingdom	Animalia
Phylum	Arthropoda
Subphylum	Hexapoda
Class	Insecta
Order	Plecoptera
Family	Leuctridae
Genus	Zealeuctra
Species	Zealeuctra narfi Ricker & Ross, 1969

Description

Diagnostic characters

Ecological class: Stygoxene
Realm: Aquatic

Distribution

Range

Known from one county in Illinois.

Continent

North America

Country

United States

States and provinces

Illinois

Counties

Illinois: Union

Conservation and management

NatureServe

G4 Apparently Secure

National ranks

United States: N4 Apparently Secure

Subnational ranks

Arkansas: SNR Unranked
Missouri: SNR Unranked
Wisconsin: SU Unrankable
Illinois: S3 Vulnerable
Oklahoma: SNR Unranked

Ranks looked up 2 July 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

Webb, D.W., Taylor, S.J. & Krejca, J.K. 1993. The biological resources of Illinois caves and other subterranean environments. Illinois Natural History Survey, Champaign, Illinois, USA. 143 pp.

This account was last revised 6 September 2026. Conservation ranks were looked up 2 July 2026.

How to cite this account

Zealeuctra narfi Ricker & Ross, 1969. Cave Biology Data Portal, account SP-3063. https://cavebiology.org/species/zealeuctra-narfi/ (accessed 22 October 2026).

Data sources and funding are listed in the Acknowledgments.

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