| Publication Type: | Journal Article |
| Year of Publication: | 1886 |
| Authors: | S. W. Williston |
| Journal: | Bulletin of the United States National Museum |
| Volume: | 31 |
| Pagination: | i-xxx, 1-335 |
| Keywords: | Syrphidae |
Taxonomic name:
| Publication Type: | Journal Article |
| Year of Publication: | 1886 |
| Authors: | S. W. Williston |
| Journal: | Bulletin of the United States National Museum |
| Volume: | 31 |
| Pagination: | i-xxx, 1-335 |
| Keywords: | Syrphidae |