This picture of Drosophila hydei is taken of a specimen collected from a container of sow dung which was heavily infested with larvae of Musca domestica and Coproica sp.
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?