Rhagovelia nigricans (Burmeister, 1835)
Material examined. Sebra, 18.0 3.14, 2 mm, 3 ff; Source Tiffert, 28.0 4.16, 6 mm, 6 ff.
Distribution. Afrotropical-Palearctic element. This is an unusual species in Morocco, dispersed mainly in the northern part of the country (L’Mohdi 2016). In the Oriental Region, it was previously recorded in Za and Zeghzel rivers (Chavanon et al. 2004). During the sampling period, R. nigricans was found at Lower Moulouya (Fig. 4).