Finnmark, Kistrand [Porsanger], Myreng, bekk, 2.vii.1968, 27 nymphs, leg. A.Lillehammer [labelled P1441: ethanol; slides with nymphal legs and cerci specimens numbered 2 and 5; with nymphal pronotum specimens no. 1-4]; Finnmark, Tana, Tjernet, bekk [stream], 3.vii.1968, 1 nymph, leg. A. Lillehammer [P1461: only slide with nymphal legs and cerci]; Finnmark, Kautokeino, Hannujokka, 26.vi. 1972, circa 50 imagos, leg. A.Lillehammer [P2693: ethanol; slides of the epiproct of three male specimens numbered 30-32]; Finnmark, Porsanger, Skoganvarre Ovrevatn, N 69.84390° E 25.07600°, 1♂, leg. L. Boumans, T. Ekrem & S. Roth, det. L. Boumans, col. NHM barcoding tissue collection EPT- 637.
Nemoura sahlbergi is a Palaearctic, and possibly circumpolar species (Teslenko & Bazova 2009). It occurs in the northernmost parts of Fennoscandia and is common in the province of Finnmark (Lillehammer 1985; 1988:118). Lillehammer probably used this material for his description of the nymph (Lillehammer 1972b). Figure 2 shows one of the epiprocts in the slide collection.