1. Ayala, F. J., M. T. Tracey, D. Hedgecock, and R. C. Richmond, 1974 Genetic dif-ferentiation during the speciation process in Drosophila. Evolution 28 (4): 576–592.
2. Bächli, G., 1971 Leucophenga und Paraleucophenga (Diptera Brachycera) Fam. Drosophilidae,Exploration du Parc National de l’Upemba, Mission G. G. de Witte (1946–1949), fasc. 71.
3. Basden, E. B., 1954 The distribution and biology of Drosophilidae (Diptera) in Scot-land, including a new species of Drosophila. Trans. R. Soc. Edinb. 72: 603–654.
4. Basden, E. B., 1956 Drosophilidae (Diptera) within the Arctic Circle. I. General survey. Trans. R. Entomol. Soc. Lond. 108:1-20.
5. Basden, E. B. and D. G. Harnden, 1956 Drosophilidae (diptera) within the Arctic Circle. II. The Edinburgh University Expedition to subarctic Norway, 1953. Trans. R. Entomol. Soc. Lond 108: 147–162.