Taxonomy and Distribution of Trichoptera in El Harrach Wadi (Northcentral Algeria) with the First Record of Hydropsyche incognita in North Africa Author Khettar, Sihem Dynamic and Biodiversity Laboratory, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, BP 32 El Alia, Bab Ezzouar, 16024 Algiers, Algeria. & Biotechnologies Environment and Health Laboratory, Faculty of Natural and Life Sciences, University of Blida 1, Soumaa Road, BP 270, Blida 09000, Algeria. Author Haouchine-Bouzidi, Nawel 0000-0002-5328-9798 Dynamic and Biodiversity Laboratory, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, BP 32 El Alia, Bab Ezzouar, 16024 Algiers, Algeria. & nbhaouchine @ gmail. com; https: // orcid. org / 0000 - 0002 - 5328 - 9798 nbhaouchine@gmail.com Author Kherbouche-Abrous, Ourida 0000-0003-3681-253X Dynamic and Biodiversity Laboratory, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, BP 32 El Alia, Bab Ezzouar, 16024 Algiers, Algeria. & ouridakherbouche @ yahoo. fr; https: // orcid. org / 0000 - 0003 - 3681 - 253 X ouridakherbouche@yahoo.fr Author Radi, Nora 0000-0002-2250-3675 Dynamic and Biodiversity Laboratory, Faculty of Biological Sciences, University of Sciences and Technology Houari Boumediene, BP 32 El Alia, Bab Ezzouar, 16024 Algiers, Algeria. & radi _ nora @ hotmail. com; https: // orcid. org / 0000 - 0002 - 2250 - 3675 radi_nora@hotmail.com Author Elalami, Majida 0000-0003-2664-646X Université Abdelmalek Essaâdi, Faculté des Sciences de Tétouan, Laboratoire Diversité et Conservation des Systèmes Biologiques, BP 2121, 93000 Tétouan, Maroc. & elalami. majida @ gmail. com; https: // orcid. org / 0000 - 0003 - 2664 - 646 X elalami.majida@gmail.com Author Beladjal, Lynda 0000-0002-5755-7235 Ghent University, Department of Biology, Terrestrial Ecology Unit, K. L. Ledeganckstraat 35, B- 9000 Gent, Belgium. & Lynda. Beladjal @ UGent. be; https: // orcid. org / 0000 - 0002 - 5755 - 7235 text Zootaxa 2022 2022-03-29 5120 4 482 500 journal article 20053 10.11646/zootaxa.5120.4.2 f76f3f00-6a6b-419b-bbf0-6efc97928319 1175-5326 6392895 7596713D-78A5-4466-86FE-91F35B4DFB23 Genus Rhyacophila F.J. Pictet 1834 Rhyacophila is the only genus of this family found in Algeria . Two species were found and identified, Rhyacophila munda McLachlan 1862 and Rhyacophila urgl Malicky & Lounaci 1987 . Rhyacophila munda McLachlan 1862 = R. oreina Navás 1936 , synonymized by Botosaneanu & Malicky, 1978 . = R. atlantica Navás 1936 , synonymized by Botosaneanu & Malicky, 1978 . The larva of this species has been described and diagnosed by Viedma & Garcia de Jalón (1980) and Vieira-Lanero (2000) . Algerian literature records. Tizi Ouzou , Aissi Wadi ( Lounaci et al . 2000 ; Malicky & Lounaci 1987 ). Djurdjura Mountains ( Sekhi et al. 2016 ). Tlemcen , Tafna Watershed (Bemmoussa & Abdellaoui-Hassaine 2017). International literature records. MOROCCO ( Ajakane 1988 ; Alaoui 2006 ; Badri 1985 ; Bonada et al . 2008 ; Bouzidi 1989 ; Dakki 1986 ; El Agbani 1984 ; El Bazi et al. 2017 ; Guellaf et al. 2021 ; Hajji et al. 2012 , 2013 ; Khadri 2018 ; Lamri et al. 2016a , 2016b ; Mabrouki et al. 2020 ; Ouahsine 1993 ; Tayoub 1989 ; Zerrouk et al. 2021 ). PORTUGAL ( González & Menéndez 2011 ). SPAIN ( Bonada et al . 2004 , 2008 ; González & Menéndez 2011 ; Martin et al. 2014 ; Ruiz-Garcia et al. 2006 ; Ruiz-Garcia & Ferreras-Romero 2008 ; Vieira-Lanero 2000 ). TUNISIA ( Kraiem 1986 ; Kumanski 2006 ; Tobias & Tobias 2008 ). Material studied. ALGERIA , Blida , Hammam Melouane, Badour Wadi (S8) ( 36°28’43”N , 3°04’07”E ) , 410 m a.s.l.: 29.v.2010 , 1 larva ; 25.vi.2013 , 1 larva ; 22.ii.2013 , 1 larva ( CSK01 ). Maktaa Lazreg , Boumaane Wadi (S1) ( 36°27’27”N , 3°00’27”E ) , 270 m a.s.l. : 07.vi.2013 , 1 larva ( CSK02 ). Maktaa Lazreg , El Aach Wadi (S4) ( 36°28’17”N , 3°00’24”E ) , 200 m a.s.l.: 07.vi.2013 , 8 larvae ; 25.vi.2013 , 1 larva ; 22.iii.2013 , 1 larva ( CSK03 ) . Distribution. Algeria , Morocco , Portugal , Spain , and Tunisia . Comment. We found this West Paleartic species for the first time in the study area. It belongs to the Pararhyacophila Group ( Döhler 1950 ). It was collected in fast-flowing biotopes in the tributaries of the El Harrach Wadi ( Fig. 2 ) between only 200 and 410 m a.s.l.