| Publication Type: | Journal Article |
| Year of Publication: | 1949 |
| Authors: | F. M. Hull |
| Journal: | Transaction of the Zoological Society of London |
| Volume: | 26 |
| Pagination: | 257-408 |
| Date Published: | 05/1949 |
| Keywords: | Eristalinae, Microdontinae, Syrphidae, Syrphinae |