| Publication Type: | Journal Article |
| Year of Publication: | 1921 |
| Authors: | H. C. Curran |
| Journal: | Proceedings of the California Academy of Sciences |
| Volume: | 11 |
| Pagination: | 345-393 |
| Date Published: | December 31, 192 |
| Keywords: | Nearctic, Pipiza, Revision, Syrphidae |
Taxonomic name: