Rafael, J. A. and Cumming, J. M. (2009) “Revision of the genus Macrostomus Wiedemann (Diptera: Empididae: Empidinae). I. The ferrugineus species-group”, Zootaxa. Auckland, New Zealand, 2064(1), pp. 39–56. doi: 10.11646/zootaxa.2064.1.4.