basis of record
Legakis, A. (2001). Insecta, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 323-324 (look up in IMIS) [details]
additional source
Grootaert, P.; De Bruyn, L.; De Meyer, M. (1991). Catalogue of the Diptera of Belgium. <em>Studiedocumenten van het Koninklijk Belgisch Instituut voor Natuurwetenschappen.</em> 70: 338pp. (look up in IMIS) [details]
From editor or global species database
Present 