Biogeograficky významné druhy vodního hmyzu v oblasti Šumavy

Abstract: Faunistic data concerning thirteen species of the Šumava Mountains aquatic insects, the recent findings of which are important from the biogeographical point of view, are presented, as follows: Baetisdigitatus, Arthroplea congener, Ecdyomtrus cf austriacus, Rhithrogena hercynia (Ephemeroptera). Cordulegaster boltoni (Odonata), Isoperla goertzi. Leuctra alpina (Plecoptera), Glaenocorisa propinqua propinqua, Cymatia bonsdorffi, Notonecta obliqua, N. maculata. N. lutea and N. reuteri (Heteroptera: Nepomorpha). In most cases, our ecological knowl-edge of these species is completed by new observations. Microsporidian species Trichoduboscqia epeon' parasiting internal organs of larvae of Rhithrogena hercynia was found at three localities as new for Central Europe. The Šumava Mountains (= Böhmerwald or Bohemian Forest) is characterized as the most valuable faunal refuge in the Elbe basin combining distributional patterns of aquatic insects with nearly all the types of the Palaearctic areas.

Key words: Faunistics, aquatic insects, Central Europe, Šumava Mountains, biogeography, ecology