@MISC {JORDAENS:2017b, title = {A preliminary checklist of the Syrphidae (Diptera) of Ghana, Togo, Benin and Nigeria}, author = {Jordaens, K. and Goergen, G. and Ssymank, A. and de Meyer, M. }, year = {2017}, howpublished = {Abstract p. 37 in the book of abstracts of the 9th International Syrphidae Symposium, Curitiba, Brazil, 28th August - 1st September}, note = {WAHub;}, }