| Publication Type: | Journal Article |
| Year of Publication: | 1979 |
| Authors: | N. A. Violovitsh |
| Journal: | (Russian) |
| Volume: | 151 |
| Pagination: | 64-80 |
| Keywords: | Helophilus, Key to species, Palaearctic, Syrphidae |
Taxonomic name:
| Publication Type: | Journal Article |
| Year of Publication: | 1979 |
| Authors: | N. A. Violovitsh |
| Journal: | (Russian) |
| Volume: | 151 |
| Pagination: | 64-80 |
| Keywords: | Helophilus, Key to species, Palaearctic, Syrphidae |