First contribution to the mayflies of Jordan

Abstract Up to now, the mayfly fauna of Jordan has been completely unknown. Based on material recently collected at approximately 30 localities, a first contribution is provided. At least seven species of Ephemeroptera belonging to three different families occur in Jordan. With four species, the Baetidae is by far the most common and diversified family. Two new species, Nigrobaetis vuatazi Gattolliat & Sartori n.sp. and Baetis monnerati Gattolliat & Sartori n.sp., are described in both larval and imaginal stages. The association of the ontogenetic stages was based on mitochondrial DNA (COI gene). Nigrobaetis vuatazi is closely related to Nigrobaetis arabiensis Gattolliat & Sartori, 2008, recently described from United Arab Emirates, but differs notably from European species especially Nigrobaetis niger (Linnaeus, 1761) and Nigrobaetis digitatus (Bengtsson, 1912). Baetis monnerati belongs to the buceratus species-group, which is known to be very common in the Levant but less frequent in Central Europe. The...