Notes on the genus Dictyogenus Klapálek, 1904 (Plecoptera, Perlodidae) in the Austrian, Italian, Slovenian and Swiss Alps, with the description of six new species

Six new species of Dictyogenus Klaplek, 1904, from the Austrian, Italian, Slovenian, and Swiss Alps, are described and illustrated from adults and nymphs. The species Dictyogenus alpinum (Pictet, 1841) and topotypical Dictyogenus fontium (Ris, 1896) are re-described.