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BugGuide is a National Moth Week Partner. How to add your National Moth Week 2021 photos. July 17-25.

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TaxonomyBrowseInfoImagesLinksBooksData
Systematics and evolution of the genera in the subfamilies Usiinae and Phthiriinae (Diptera: Bombyliidae) of the world
By Neal L. Evenhuis
Bishop Museum Press, Honolulu, 1989
Cite: 1211971 with citation markup [cite:1211971]
Available as a PDF at http://hbs.bishopmuseum.org/pubs-online/pdf/be3.pdf

Presents and provides details supporting current taxonomy of Usiinae and Phthiriinae...with many neartic taxa rearranged into different genera from previous circumscriptions.