Larval Taxonomy and Distribution of Genus Hydropsyche (Trichoptera: Hydropsychidae) in Northwestern Algeria Author Bemmoussat-Dekkak, Soumya 0000-0002-8723-5501 Laboratoire de Valorisation des Actions de l’Homme pour la Protection de l’Environnement et Applications en Santé publique, Université de Tlemcen, BP 119 13000 Tlemcen, Algérie. & dekkaksoumia @ hotmail. fr; https: // orcid. org / 0000 - 0002 - 8723 - 5501 dekkaksoumia@hotmail.fr Author Abdellaoui-Hassaine, Karima 0000-0002-7568-8132 Laboratoire de Valorisation des Actions de l’Homme pour la Protection de l’Environnement et Applications en Santé publique, Université de Tlemcen, BP 119 13000 Tlemcen, Algérie. & hassaine 69 @ hotmail. com; https: // orcid. org / 0000 - 0002 - 7568 - 8132 hassaine69@hotmail.com Author Sartori, Michel 0000-0003-3397-3397 Musée cantonal de zoologie, Palais de Rumine, Place Riponne 6, 1005 Lausanne, Suisse & Département d’Ecologie et d’Evolution, Université de Lausanne, Biophore, 1015 Lausanne, Suisse & michel. sartori @ vd. ch; https: // orcid. org / 0000 - 0003 - 3397 - 3397 michel.sartori@vd.ch Author Morse, John C. 0000-0003-3187-4045 Department of Plant & Environmental Sciences, Clemson University, Clemson, South Carolina, USA & jmorse @ clemson. edu; https: // orcid. org / 0000 - 0003 - 3187 - 4045 jmorse@clemson.edu Author Zamora-Muñoz, Carmen Departamento de Zoología, Facultad de Ciencias, Universidad de Granada, 18071 - Granada (Spain) text Zootaxa 2021 2021-01-25 4915 4 481 505 journal article 8676 10.11646/zootaxa.4915.4.2 70890c1c-cbf0-4135-9bf3-5e22b64e3cd3 1175-5326 4461519 84122919-0AE3-43BB-AECB-6F3CA0D63629 Hydropsyche lobata McLachlan 1884 ( Figs 10 , 11 ) Material examined: Chouly Wadi at Yebder ( CH 1): 1 Ƌ imago ( UTA ) and 1 mature Ƌ pupa ( UTA ), 21.vii.2019 . Hydropsyche lobata morphotype 1 larvae : Chouly Wadi at Yebder ( CH 1): 30 ( UTA , UGS ), 22.xii.2014 , 7 ( UTA ), 14.xi.2015 , 11 ( UTA ), 16.x.2015 , 12 ( UTA ), 08.xi.2016 , 33 ( UTA ), 16.ii.2019 . Hydropsyche lobata morphotype 2 larvae : Khemis Wadi (KH1): 5 larvae ( UTA , UGS ), 30.i.2015 . Description: Larva described by García de Jalon (1981) and Dakki (1986) . Both morphotypes having wide frontoclypeal apotome with straight anterior edge ( Figs 10B , 11B ). Rectangular posterior prosternites darkly pigmented ( Figs 10D , 11D ). Lateral parts of submentum long and narrow. Pro- and mesothoraces each with dark central longitudinal band ( Figs 10A , 11A ). In H. lobata morphotype 1, dark oral spot close to dark median spot; in addition, both anterolateral spots clear and quite distinct, aboral spot small and oval ( Fig. 10B ). Hydropsyche lobata morphotype 2 with dark oral spot, two light anterolateral spots, and completely clear, Vshaped aboral spot ( Table 2 , Fig. 11B ). Distribution and ecology: The species has been reported from the Iberian Peninsula ( Spain , Portugal ) by González & Menéndez (2011) , from the Pyrenees, northwest Africa, and the Iberian Peninsula, including the eastern Galician Mountains by Martin et al. (2014) , and from Morocco and Algeria by Tobias & Tobias (2008) . Larvae were found at two high altitude sites at 854 and 916 m a.s.l. In our study, it is a thermophilic (19.5–21.18 ° C) and slightly rheophilic species living under heterometric pebbles. It displays preferences for sunny microhabitats.