Notes on Utah Syrphidae
Knowlton, George F., 1901-1987 Pack, H J
Article
1930
The Pan-Pacific entomologist
6
182--189
BioStor
English
San Francisco, Pacific Coast Entomological Society,
BioStor: https://biostor.org/reference/224474
In copyright. Digitized with the permission of the rights holder.
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