All: key to tribes in Li & Yeates, 2019: “Phylogeny, classification and biogeography of bombyliine bee flies (Diptera, Bombyliidae)." Link
All: outdated key to genera on page 70 of Hull, 1973: “Bee flies of the world: the genera of the family Bombyliidae." Link
Nearctic: key to genera on page 2 of Hall & Evenhuis, 1980: “Family Bombyliidae. In Flies of the Nearctic Region. Vol. V, Part 13, Number 1." Contact me
Australia: key to genera in Li & Yeates, 2018: “Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera." Link
China: key to genera (in Mandarin) on page 217 of Yang, Yao, & Cui, 2012: “Bombyliidae of China." Contact me
All: key to species on page 22 of Hall, 1975: “The Bombyliidae of Chile (Diptera : Bombyliidae)" Contact me
All: key to species in Li & Yeates, 2019: “Revision of the Australian bee fly genus Sisyromyia White, 1916 (Bombyliidae, Bombyliinae, Acrophthalmydini)." Link
All: key to species on page 681 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Nearctic: key to species on page 162 of Hall & Evenhuis, 1981: “Family Bombyliidae. In Flies of the Nearctic Region. Vol. V, Part 13, Number 2." Contact me
Palearctic: key to species (in German) on page 424 of Paramonov, 1930: “Beiträge zur Monographie der Bombyliiden-Gattungen Cytherea, Anastoechus, etc. (Diptera)." Contact me
Africa (eastern): key to species in Greathead, 1996: “The genera Systoechus and Anastoechus in eastern Africa {Diptera: Bombyliidae)." Contact me
Africa (southern): key to species on page 293 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
China: key to species in Yao, Yang, & Evenhuis, 2010: “The genus Anastoechus Osten Sacken, 1877 (Diptera: Bombyliidae) from China, with descriptions of four new species." Link
All: key to species as Bombylius "Group 3" on page 86 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa Part I." Link
Afrotropical: key to species as the Bombylius discoideus group in Paramonov, 1955: “African species of the Bombylius discoideus Fabricius-group (Diptera: Bombyliidae)." Link
Afrotropical: key to species in Greathead, 1999: “A review of the Afrotropical species of Bombylella Greathead (1995) (Diptera: Bombyliidae)." Link
China: key to species (in Mandarin) on page 242 of Yang, Yao, & Cui, 2012: “Bombyliidae of China." Contact me
Afrotropical: key to species in Greathead, 1996: “The genus Bombylisoma Rondani (Diptera: Bombyliidae): phylogenetics and review of species from the Afrotropical Region" Link
Nearctic: key to species on page 93 of Hall & Evenhuis, 1981: “Family Bombyliidae. In Flies of the Nearctic Region. Vol. V, Part 13, Number 2." Contact me
Nearctic/Neotropical: key to species of the Bombylius comanche group in Evenhuis, 1984: “Revision of the Bombylius comanche group of North America (Diptera: Bombyliidae)." Link
Africa (southern): key to species on page 44 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Europe (northwest): key to species on the Faunist website.
Canada (eastern): key to species in Kits, Marshall, & Evenhuis, 2008: “The bee flies (Diptera: Bombyliidae) of Ontario, with a key to the species of eastern Canada." Link
Chile: key to species in Hall, 1975: “The Bombyliidae of Chile." Contact me
China: key to species (in Mandarin) on page 246 of Yang, Yao, & Cui, 2012: “Bombyliidae of China." Contact me
Ethiopia/Eritrea: key to species (includes Bombomyia as the Bombylius discoideus group) on page 203 of Greathead, 1967: “The Bombyliidae (Diptera) of northern Ethiopia." Link
South Korea: key to species in Lee & Han, 2017: “Taxonomic review of the genera Bombylius and Bombylella (Diptera: Bombyliidae) in Korea." Link
United States (Utah): key to species in Johnson & Johnson, 1975: “Notes on the genus Bombylius Linnaeus in Utah, with key and descriptions of new species (Diptera: Bombyliidae)." Link
All: key to species in Li & Yeates, 2018: “Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera." Link
All: key to most species on page 547 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
All: key to species in Li & Yeates, 2018: “Phylogeny and taxonomic revision of the genus Eristalopsis Evenhuis (Diptera: Bombyliidae: Bombyliinae)." Link
Africa (southern): key to species on page 508 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Ghana: key to species on page 32 of Bowden, 1964: “The Bombyliidae of Ghana." Contact me
All: key to species in Cunha, Lamas, & Couri, 2007: “Revision of the New World bee fly genus Heterostylum Macquart (Diptera, Bombyliidae, Bombyliinae)." Link
All: key to species in Li & Yeates, 2020: “Revision of the Australian bee fly genus Meomyia Evenhuis, 1983, with description of three new species (Bombyliidae, Bombyliinae, Bombyliini)." Link
All: key to species in Li & Yeates, 2018: “Morphological phylogeny of the Australian genera of the bee fly subfamily Bombyliinae (Diptera: Bombyliidae) with description of four new genera." Link
Chile: key to species as Bombylius (Parasystoechus) in Hall, 1975: “The Bombyliidae of Chile (Diptera: Bombyliidae)." Contact me
Africa (southern): key to species as Bombylius "Group 2" on page 58 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Nearctic: key to species in Painter, 1962: “The Taxonomy and Biology of Systoechus and Anastoechus Bombyliid (Diptera) Predators in Grasshopper Egg Pods." Link
Africa (eastern): key to species in Greathead, 1996: “The genera Systoechus and Anastoechus in eastern Africa {Diptera: Bombyliidae)." Contact me
Africa (southern): key to species on page 293 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Canada (eastern): key to species in Kits, Marshall, & Evenhuis, 2008: “The bee flies (Diptera: Bombyliidae) of Ontario, with a key to the species of eastern Canada." Link
China: key to species (in Mandarin) on page 277 of Yang, Yao, & Cui, 2012: Bombyliidae of China. Contact me
Ghana: key to species on page 22 of Bowden, 1964: “The Bombyliidae of Ghana." Contact me
All: key to species in Yao, Yang, and Evenhuis, 2011: “Two new species of Tovlinius Zaitzev, from China, with a key to the genera of Bombyliinae from China and a second key to the world species (Diptera, Bombyliidae, Bombyliinae, Bombyliini)." Link
Africa (southern): key to species as Bombylius "Group 1, Section 1" on page 45 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Nearctic: key to species in Hall, 1975: “The North American species of Triploechus Edwards (Diptera: Bombyliidae)." Link
Chile: key to species in Hall, 1975: “The Bombyliidae of Chile (Diptera: Bombyliidae)" Contact me
Africa (southern): key to species as Bombylius "Group 2" on page 58 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
Nearctic: key to species in Priddy, 1958: “The Genus Conophorus in North America (Diptera, Bombyliidae)." Link
Palearctic: outdated key to species (in German) on page 95 of Paramonov, 1929: “Beiträge zur Monographie einiger Bombyliiden-Gattungen. (Diptera)." Contact me
China: key to species (in Mandarin) on page 270 of Yang, Yao, & Cui, 2012: “Bombyliidae of China." Contact me
Nearctic: key to species in Hall & Evenhuis, 1982: “Family Bombyliidae. In Flies of the Nearctic Region. Vol. V, Part 13, Number 3." Contact me
Africa (southern): key to species on page 531 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
All: key to species in Li & Yeates, 2016: “Revision of the Australian bee fly genus Eusurbus Roberts, 1929 (Bombyliidae, Bombyliinae), and description of Zentamyia gen. nov. Bombyliidae."
Africa (southern): key to species on page 622 of Hesse, 1938: “A revision of the Bombyliidae (Diptera) of Southern Africa, Part I." Link
All: key to species in Li & Yeates, 2018: “Revision of the Australian bee fly genus Pilosia Hull, 1973 (Bombyliidae, Bombyliinae) from Western Australia." Link
All: key to species in Greathead, 1997: “A review of the genus Sisyrophanus Karsch 1886 (Diptera: Bombyliidae)." Link
All: key to genera (as Ecliminae) in Greathead, 1988: “The relationships of Tillyardomyia Tonnoir with a redefinition of the subfamily Ecliminae (Diptera: Bombyliidae)." Link
Neotropical: key to genera (as Ecliminae) in Lamas & Rodrigues, 2013: “Review of Cyrtomyia Bigot (Diptera, BomByliidae, Ecliminae) with a key to the Neotropical genera of Ecliminae and Cyrtomyia species." Link
All: key to species in Lamas & Rodrigues, 2013: “Review of Cyrtomyia Bigot (Diptera, BomByliidae, Ecliminae) with a key to the Neotropical genera of Ecliminae and Cyrtomyia species." Link
All: key to species on page 8 of Hall, 1969: “A review of the subfamily Cylleniinae, with a world revision of the genus Thevenemyia Bigot: (Eclimus auct.) (Diptera, Bombyliidae)." Contact me
All: key to species in Rodrigues & Lamas, 2013: “A Revision of the New World genus Lepidophora Westwood, 1835 (Diptera, Bombyliidae, Ecliminae) with a key to the species." Link
Nearctic: key to species on page 13 of Hall, 1969: “A review of the subfamily Cylleniinae, with a word revision of the genus Thevenemyia Bigot: (Eclimus auct.) (Diptera, Bombyliidae)." Contact me
Palearctic: key to species in Yao et al., 2022: “First records of the subfamilies Ecliminae and Lomatiinae (Diptera, Bombyliidae) from China with description of two new species." Link
Australia: key to species in Li et al., 2018: “A Review of the Australian Species of Thevenetimyia Bigot, 1875 (Bombyliidae, Bombyliinae, Eclimini), with Description of Four New Species and the Pupal Case of T. longipalpis (Hardy)." Link
Canada (eastern): key to species in Kits, Marshall, & Evenhuis, 2008: “The bee flies (Diptera: Bombyliidae) of Ontario, with a key to the species of eastern Canada." Link
All: key to species (in German) on page 105 of Paramonov, 1931: “Beiträge zur Monographie der Bombyliiden Gattungen Amictus, Lyophlaeba etc. (Diptera)." Contact me
All: key to species in Li & Yeates, 2018: “One hundred years of solitude ended: A second species of Marmasoma White, 1916 (Diptera, Bombyliidae, Bombyliinae, Eclimini) from Australia." Link
All: key to species (in Portuguese) in Lamas & Couri, 1999: “Revisão de Euprepina Hull (Diptera, Bombyliidae, Bombyliinae)." Link
All: key to species (as Dischistus) in Hall, 1975: “The Bombyliidae of Chile." Contact me
All: key to species in Lamas and Yamaguchi, 2010: “Revision of Neodischistus Painter, 1933 (Diptera, Bombyliidae, Bombyliinae)." Link