A new species of the Baetis fuscatus group (Ephemeroptera, Baetidae) from Morocco.

Baetis rifensis sp. nov. is the first representative of the Baetis fuscatus group to be described from the Maghreb. It was collected from streams in the Rif region of northern Morocco. All species of the B. fuscatus group are morphologically very similar, with slight differences in colour. Thus, in addition to morphological description, species delimitation based on genetic evidence was carried out. The new species was compared with other members of the B. fuscatus group from the Palaearctic region. [ABSTRACT FROM AUTHOR]