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Genus Poecilognathus


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
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.

Homeodactyla and Asilomorpha: Bombyliidae, Vol. 5, Part 13, in 'Flies of the Nearctic Region', edited by G. C. D. Griffiths
By Jack C. Hall & Neal L. Evenhuis
E. Schweizerbartsche Verlagsbuchhandlung, Stuttgart, 1980
This ambitious and extremely detailed monograph was published in seven "Numbers" over 24 years. The bulk of the work, Numbers 1-6 (consisting of pp. 1—656), were published between 1980 and 1987, with the final Number 7 (pp. 657—716) appearing in 2004. On pg. 708 of that last part, the authors expressed their apologies for not being able to complete the intended treatment due to unforeseen circumstances, and the hope that other authors might continue work on the portion of the family not completed.

Altogether, the work covers the following subfamilies of Bombyliidae in the order listed below:

The Bee Flies (Diptera: Bombyliidae) of Ontario, with a Key to the Species of Eastern Canada
Just heard fro Steve Marshall, now on line HERE

Bee Flies of the World: The Genera of the Family Bombyliidae
By Hull, Frank M.
Smithsonian Institution Press, 1973
Though this work covers more than North America, it includes North American genera with distribution maps, notes on host relationships, and illustrations that help identify to genus level.

World Catalog of Bee Flies (Diptera : Bombyliidae)
By Neal L. Evenhuis
Backhuys Publishers, Leiden. 804 pp., 1999
An extremely valuable, and exhaustive work for anyone interested in the taxonomy of the family of Bombyliidae.

Journal of the Kansas Entomological Society
Kansas Entomological Society, 1928
Index of journal coverage from 1928-2012 (Vol. 1, No. 1 - Vol. 85, No. 4), including titles and sample page.

Available online here (requires JSTOR access)

Monographs of the Diptera of North America
By Hermann Loew
Smithsonian Institution, Volume 6, 1862
View Monograph here

Catalogue of American Nycteribiidae (Diptera, Hippoboscoidea)
By Gustavo Graciolli, AnalĂ­a G. Autino & Guillermo L. Claps
Revista Brasileira de Entomologia 51(2): 142-159, 2007