Isoperla obscura
- kingdom: Animalia
- phylum: Arthropoda
- class: Insecta
- order: Plecoptera
- family: Perlodidae
- genus: Isoperla
- species: Isoperla obscura
Ferlach
Maria Rain
Carinthia
Emmersdorf an der Donau
Melk
Seitenstetten Markt
Lower Austria
Braunau am Inn
Upper Austria
Nofels
Vorarlberg
Austria
Simbach am Inn
Bavaria
Cottbus
Eisenhüttenstadt
Mescherin
Brandenburg
Bad Muskau
Saxony
Germany
Bolzano
Merano
Scena - Schenna
Trentino-Alto Adige
Italy
Łęknica
Lubusz
Poland
Aiud
Aiudul de Sus
Alba
Cisnădie
Sibiu
Romania
Ljusne
Gävleborg
Knäred
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Övertorneå
Norrbotten
Älvkarleby
Uppsala
Munkfors
Värmland
Skellefteå
Vilhelmina
Västerbotten
Bergeforsen
Västernorrland
Sweden
Bad Ragaz
Saint Gallen
Switzerland
Budapest VI. kerület
Planken