Rhithrogena grischuna nov. sp., a new mayfly species from eastern Switzerland related to Rh. hercynia Landa, 1969 (Ephemeroptera ; Heptageniidae)M. Sartori and R. OswaldAnnls Limnol., 24 3 (1988) 261-268DOI: https://doi.org/10.1051/limn/1988022
