Hydropsyche fezana Navás 1932

Bemmoussat-Dekkak, Soumya, Abdellaoui-Hassaine, Karima, Sartori, Michel, Morse, John C. & Zamora-Muñoz, Carmen, 2021, Larval Taxonomy and Distribution of Genus Hydropsyche (Trichoptera: Hydropsychidae) in Northwestern Algeria, Zootaxa 4915 (4), pp. 481-505 : 486

Hydropsyche fezana Navás 1932

( Fig. 5 )

Material examined: Chouly Wadi at Beni Ghazli ( CH 0): 2 larvae ( UTA, UGS), 22.ii.2015 .

Description: Body brown ( Fig. 5A ). Frontoclypeus having dark oral spot with two lateral light spots and indistinct blurred aboral spot ( Fig. 5B ; Table 2); lateral lobes of submentum short and wide ( Fig. 5C ) and prosternites moderately pigmented ( Fig. 5D ).

Distribution and ecology: This West Palearctic species has been reported from Algeria (Grant Kabylia) ( Sekhi et al. 2016), Italy (Calabria) ( Valle & Ludovici 2018), and Morocco ( Badri 1985; Mohati 1985; Dakki 1986; Ouahsine 1993; Tayoub 1989; El Alami & Dakki 1998; Bonada et al. 2008; Hajji et al. 2013). It is considered to be a rheophilic species, generally inhabiting permanent, medium and large streams with moderate flow, flowing on a heterogeneous bottom made of silt, sand, and pebbles ( Hajji 2017). It is the most common and most abundant Trichoptera species in the Moroccan Rif ( Hajji 2017), and it is widely distributed and abundant in springs of streams, torrents and rivers of the Great Kabylia ( Sekhi et al. 2016). Only two individuals were collected from a single site located at 1065 m a.s.l in the springs of the streams where it co-occurs with H. siltalai . However, it does not have the same rheophilic habitat as its congener.

Figures

FIGURE 5. Hydropsyche fezana Navás 1932. 5A, head and thorax, dorsal; 5B, cephalic capsule, dorsal; 5C, cephalic capsule, ventral; 5D, posterior prosternites, ventral. [scale bar = 1 mm].