New or little known genera of North American Syrphidae
Williston, Samuel W. (Samuel Wendell), 1851-1918
Article
1882
The Canadian entomologist
14
77--80
BioStor
English
Ottawa [etc.], Entomological Society of Canada [etc.],
BioStor: https://biostor.org/reference/73333 DOI: https://doi.org/10.4039/Ent1477-4