Deux Hydropsyche nouveaux du Jourdain (Trichoptera, Hydropsychidae)

Two new Hydropsyche-species from the Jordan River are described; they belong to the guttata-group, and at least one of them was regularly confused with the West European H. exocellata Duf. H. batavorum sp.n. is an apparently rare species, whose phallus shows features never recorded at least for the guttata-group. H. janstockiana sp.n. is much more abundant, and it is obviously nearly related to H. sciligra Mal. (Caucasus, Iran, Asia Minor, Central Asia). Both are certainly potamobionts whereas the third Hydropsyche of the Jordan River System ( H. jordanensis Tjeder. belonging to the instabilis-group) seems to be rather a rhithrobiont.