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Studies in New World Bombyliidae (Diptera). I. Notes on some Nearctic Bombylius, with descriptions of new species.
By Neal Evenhuis
International Journal of Entomology, 1983

A revision of the flavidus group of the genus Chrysops Meigen (Diptera : Tabanidae)
By Baier, T. M
Proceedings of the Entomological Society of Washington 101: 175-196, 1999

The Insect and Arachnids of Canada. Part 14. The grasshoppers, crickets, and related insects of Canada and adjacent regions...
By Vickery, V. R. and D. K. McE. Kevan
Biosystematics Research Institute, Agriculture Canada, 1986
The grasshoppers, crickets, and related insects of Canada and adjacent regions: Ulonata: Dermaptera, Cheleutoptera, Notoptera, Dictuoptera, Grylloptera, and Orthoptera.

Guide to the Dermaptera, Orthoptera, and more of Canada and adjacent regions, with keys, descriptions, and distributional data.

Publisher website containing the free PDF here:
The free PDF itself currently here:

Redescription and lectotype designation of Tabanus sulcifrons Macquart (Diptera: Tabanidae), and comparison to related taxa
By Burger, J.F.
Proc. Entomol. Soc. Wash. 82(4): 660-667, 1980

Revision of New World species of Roederiodes Coquillett (Diptera: Empididae: Clinocerinae)
By Brad J. Sinclair
Zootaxa, 2023

The morphology, higher level phylogeny and classification of the Empidoidea (Diptera)
By Sinclair, B.J. & Cumming, J.M.
Zootaxa, Vol. 1180 (Magnolia Press, Auckland, New Zealand), 2006
PDF available on the journal's website: (open access)

A revision of the Nearctic species of the Tachydromine fly genus Stilpon Loew (Diptera: Empidoidea)
By Cumming, J.M., Cooper, B.E.
Canadian entomologist, 1992
Abstract here.

Three new species of diptera
By Greene, Charles T
Proceedings of the Entomological Society of Washington, volume 20, on pages 69-71, 1918
descriptions of Myxosargus nigricormis, as well as Madiza conicola and Chrysotoxum coloradensis

ITIS says Madiza conicola is a junior synonym of Hapleginella conicola and that Chrysotoxum coloradense is an invalid junior synonym of Chrysotoxum fasciatum. There’s no ITIS listing for Chrysotoxum coloradensis as it’s spelled in the original paper.

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