Hoverflies at the edge: new southern records of two European genera of Syrphidae (Diptera)

Records of two species of hoverflies (Diptera, Syrphidae), Hammerschmidtia ferruginea (Fallén, 1817) and Megasyrphus erraticus (Linnaeus, 1758), are here provided for the first time in the Iberian Peninsula, both records located at the southern edges of these genera ranges in Europe. The new data is reported following fieldwork in the Pyrenees of Huesca and Lleida provinces (Spain) and consultation of the 'Museu de Ciències Naturals de Barcelona' entomological collection. The importance of these findings is discussed in the frame of the conservation of these species’ habitats.