Leuctra geniculata Stephens 1836

Material examined. High-Atlas: Ourika Valley, Ait El Kake, below Oukaimeden, torrrent, 2150 m, 15.11.201 3, 47♂, 29♀ (VIN).

Distribution. A central and west European species which also occurs in the British Isles and the Maghreb.

Ecology. In Europe, it occurs more frequently in large rivers and streams of lowland regions (metarhithral - epipotamal) while in the Moroccan Rif, it widely occurs between 50-1520 m (Errochdi et al. 2014) and in the High-Atlas, up to 2150 m. The adults mainly emerge in autumn (VIII-XI).