Subspecies

Cultus decisus isolatus (Banks, 1920)

Southern Springfly

Nomenclature (5)

Isoperla isolata Banks, 1920: 322. (valid)
Syntype; MCZ M. C. Z. 10,824; deposited at: Museum of Comparative Zoology (MCZ); United States: North Carolina: Hot Springs. Syntype; MCZ M. C. Z. 10,824'; deposited at: Museum of Comparative Zoology (MCZ); United States: North Carolina: Black Mts.
Isoperla isolata Banks, 1920 (subjective synonym of Perla decisus Walker, 1852) in Illies, 1966: 356.

Cultus decisus isolatus (Banks, 1920) in Kondratieff, Verdone & Roble, 2017: 26.
Cultus decisus isolatus (Banks, 1920) in Verdone, Kondratieff, DeWalt & South, 2017: 43.

Banks, N. (1920) New Neuropteroid Insects. Bulletin of the Museum of Comparative Zoology at Harvard College, 64(3), 299–362, 7 pls. Available at http://www.biodiversitylibrary.org/item/28057#page/307/mode/1up
Illies, J. (1966) Katalog der rezenten Plecoptera. Das Tierreich – Eine Zusammenstellung und Kennzeichnung der rezenten Tierformen., 82, 1–631.

Stark, B.P., Szczytko, S.W. & Kondratieff, B.C. (1988) The Cultus decisus complex of eastern North America (Plecoptera: Perlodidae). Proceedings of the Entomological Society of Washington, 90(1), 91–96.
Verdone, C.J., Kondratieff, B.C., DeWalt, R.E. & South, E.J. (2017) Studies on the stoneflies of Georgia with the description of a new species of Soyedina Ricker, new state records and an annotated checklist. Illiesia: International Journal of Stonefly Research, 13(3), 30–49. Available at http://illiesia.speciesfile.org/papers/Illiesia13-03.pdf

Summary of taxonomic names by rank, showing valid extant names, fossil names, invalid names, and total counts.
Taxon	Valid names
Rank	Extant	Fossil	Invalid	Total
Subspecies	1	0	1	2

Gender, form, and etymology