The Genus Pterallastes Loew (Diptera: Syrphidae)
Thompson, F. Christian.
Article
1974
Journal of the New York Entomological Society
82
15--29
BioStor
English
Lawrence, Kan Allen Press [etc.]
BioStor: https://biostor.org/reference/171577
In Copyright. Digitized with the permission of the rights holder
https://www.biodiversitylibrary.org/permissions/
http://creativecommons.org/licenses/by-nc/3.0/
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