Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Species Thrypticus willistoni


A Synopsis of the Dolichopodidae of the Southeastern United States and Adjacent Regions
By Harold Robinson
Entomological Society of America, 1964
Miscellaneous Publications of the Entomological Society of America 4:103-192

Includes keys to species, typically for the Eastern United States.

Catalog of the Dolichopodidae (Diptera) of America north of Mexico
By Marc A. A. Pollet et al.
American Museum of Natural History, 2003
Online at AMNH

Abstract:
"A catalog of the American species of Dolichopodidae north of Mexico is provided. Fifty-five valid genera and 1288 valid species and 3 subspecies in 14 subfamilies are listed. [...] For each genus, the species list is preceded by notes on its distribution, biology, and ecology as well as a list of pertinent keys and revisions, when such information is available. For each valid species name, the list includes the author, year of publication, page number of original description, type depository and locality, and distribution in North America by state or province and occurrence in other realms, as well as taxonomic notes wherever applicable. Additional distribution records from the literature have been added. [...] Statistics and comments on the history of North American dolichopodid research are presented. The diversity and distribution of Nearctic Dolichopodidae and their relationships with the fauna of other realms is tabulated and discussed."

Diversity of saproxylic dance flies and long-legged flies (Diptera: Empidoidea) in a temperate deciduous forest in Quebec...
By Cumming JM, Sinclair BJ, Brooks SE, Mlynarek J, and Wheeler TA
Zootaxa 4521(2): 287-293, 2018
full title: Diversity of saproxylic dance flies and long-legged flies (Diptera: Empidoidea) in a temperate deciduous forest in Quebec, Canada

PDF on ResearchGate

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.

DIPTERA: an Introduction to Flies
By Nikita Vikhrev
Phyton publisher, Moscow, 2020
Available on NHBS (UK): https://www.nhbs.com/diptera-an-introduction-to-flies-book
Diptera: An Introduction to Flies is easy to read and gives a general introduction to this order of amazing insects.
The book was first published in Russian in 2019. the current English version was substantially extended and revised by the author and editors.
160 pages, 250 colour photos, hardback

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

The Secret Life of Flies
By Erica McAlister
Natural History Museum, London, 2017
Available on Amazon.

Images posted on Bugguide which appear in this book:

Please let me know if I missed any; I will add.