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Superfamily Empidoidea

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Genera Insectorum 185
By A. L. Melander
P. Wytsman, 1928
Genera Insectorum fasc. 185 contains Melander's revision of Empididae.

It is available in the Biodiversity Heritage Library collection as the second half of the 184+185 pair.

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)

Revision of the Nearctic Parathalassius Mik (Diptera: Dolichopodidae), with a review of the world fauna
By Brooks, Scott E. and Jeffrey M. Cumming
Zootaxa 4314, 2017
"The Nearctic species of Parathalassius Mik are revised and the world species are reviewed. Twelve species are recorded from the Nearctic Region including nine new species: P. abela sp. nov., P. aldrichi Melander, P. candidatus Melander, P. dilatus sp. nov., P. infuscatus sp. nov., P. melanderi Cole, P. midas sp. nov., P. sinclairi sp. nov., P. socali sp. nov., P. susanae sp. nov., P. uniformus sp. nov., and P. wheeleri sp. nov. Lectotype designations are made for P. aldrichi Melander and P. melanderi Cole. A key to the 15 world species is provided and the distributions of the Nearctic species are mapped. COI mitochondrial DNA barcode sequences were obtained for 12 species of Parathalassius. A morphological phylogenetic analysis of the included species is presented and known ecological information is summarized."

A new species of Sciapus from California, with a revised key to the species of Sciapus found in America north of Mexico
By G.C. Steyskal
Proceedings of the Entomological Society of Washington 68(4): 290-294, 1966
Full title: "A new species of Sciapus from California, with a revised key to the species of Sciapus found in America north of Mexico (Diptera: Dolichopodidae)."

Online here.

A revision of the North American species of the genus Argyra Macquart, two-winged flies of the family Dolichopodidae
By Van Duzee, M. C.
Proceedings of the United States National Museum, 66(2560): 1-43, 1925

The Dipterous genus Dolichopus in North America
By M. C. Van Duzee, F. R. Cole, and J. M. Aldrich
United States National Museum Bulletin 116, 1921
This is the last revision of the entire genus Dolichopus in North America (it will also work in Mexico, which has no additional species). Descriptions of all species are included. The key to species was supplemented a decade later(1) to account for species described in the 1920s, but dozens more species have been described since the 1930s.

Full text via Google books

Key to Nearctic Dolichopus Latreille (Diptera)
By M. C. Van Duzee and C. H. Curran
American Museum Novitates 683 and 684, 1934
This is the last key to the entire genus Dolichopus for North America. Robinson (1964) has a key to males of Southeastern species. Stekyskal (1973) has a key to "Group B."

Full text of vol. 683 at AMNH (males)
Full text of vol. 684 at AMNH (females)

A Revision of the North American Species of the Dipterous Genus Hydrophorus
By Aldrich, J. M.
Psyche 18:45-69, 1911
Google Books link from the genus page

downloadable PDF from the publisher

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