BioStor
Episyrphus alternans Macquart, 1842
 | Catalogue of the dipterous insects collected at Sarawak, Borneo by A.R. Wallace, Esq., with descriptions of new species F Walker (1856) Journal of the Proceedings of the Linnean Society of London 1: 105-136 |
 | Enumeration of the Diptera of the Malayan Archipelago, collected by O. Beccari, L. M. D'Albertis, and others (1881) Annali Del Museo Genova 16: 393-492 |
 | A revisional study of the fossil Syrphidae F M Hull (1945) Bulletin of The Museum of Comparative Zoology 95: 251-355 |