Taxonomy and distribution of Trichoptera in El Harrach Wadi (Northcentral Algeria) with the first record of Hydropsyche incognita in North Africa

Data on the caddisfly fauna of Algeria are incomplete and the available information concerns only some regions. In the present contribution, new distribution data on Trichoptera in El Harrach Wadi are given. Sampling campaigns were conducted during 2010–2013 at 10 sampling sites where eleven species were collected as follows: Hydropsyche fezana Navás 1935, H. incognita Pitsch 1993, H. lobata McLachlan 1884, H. maroccana Navás 1936, H. obscura Navás 1928, H. resmineda Malicky 1977, Hydropsyche sp., Cheumatopsyche sp., Diplectrona sp., Oxyethira sp., and Rhyacophila munda McLachlan 1862. The record of H. incognita Pitsch 1993a is new for Algeria and the Maghreb