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Books
Data

Superfamily Empidoidea

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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 revision of the genus Syneches Walker (Diptera: Empididae) for North America and the Antilles
By Wilder DD
Masters thesis, Michigan State University, 1972
PDF of Wilder's masters thesis
the published version (1)

A revision of the genus Syneches Walker (Diptera: Empididae) for North America and the Antilles
By Wilder DD
Contributions of the American Entomological Institute 10(5):1-30, 1974
Available for purchase at http://www.amentinst.org/contributions.php

The Masters thesis that preceded this monograph (1)

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

Revisionary notes on the genus Systenus Loew with the description of a new species
By Steyskal, George C.
Proceedings of the Entomological Society of Washington, 1970
Steyskal, George C. 1970. "Revisionary notes on the genus Systenus Loew with the description of a new species (Diptera: Dolichopodidae)." Proceedings of the Entomological Society of Washington 72, 107–111, https://www.biodiversitylibrary.org/item/55015

The Dipterous Genus Campsicnemus in North America
By Harmston FC and Knowlton GF
Bulletin of the Brooklyn Entomological Society 37: 10-17, 1942
PDF

The Dipterous genus Sympycnus Loew in North America and the West Indies
By Van Duzee MC
The Pan-Pacific Entomologist 7:35-47, 1930
available @ BHL

when I tried to download the paper using the "Download Article" menu choice, I got the preceding article instead. Selecting individual pages and "generating" the download works

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