Couri, M. S. and Pont, A. C. (2018) “The male terminalia of some African species of Helina Robineau-Desvoidy, 1830 (Diptera, Muscidae)”, Zootaxa. Auckland, New Zealand, 4399(2), pp. 233–247. doi: 10.11646/zootaxa.4399.2.7.