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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Sepedon armipes

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A review of the Holarctic Sepedon fuscipennis and S. spinipes groups with description of a new species (Diptera: Sciomyzidae)
By Elberg K., Rozkošný R., Knutson L.
Zootaxa 2288: 51–60, 2009

Comprehensive taxonomic, faunistic, biological, and biogeographic inventory and analysis of the snail-killing flies...of Indiana
By Murphy, William L.
Proceedings of the Indiana Academy of Science, Vol. 129 (2), p143-265. 123p. , 2021
Full title: "Comprehensive taxonomic, faunistic, biological, and biogeographic inventory and analysis of the snail-killing flies (Diptera: Sciomyzidae) of Indiana, USA."

Abstract: "The Sciomyzidae (Insecta: Diptera), also known as marsh flies or snail-killing flies, arc a family of acalyptrate true flies; 541 described species in 62 genera are known worldwide, of which 170 species in 23 genera are known from the Nearctic (North America including Greenland, south to northern Mexico). The biology of all Nearctic species is tied intimately to Mollusca--snails, snail egg masses, slugs, and fingernail clams. Examined here faunistically and taxonomically are all 61 species of Sciomyzidae in 15 genera recorded from Indiana. USA, and an additional 28 species in 15 genera not yet recorded from Indiana but recorded from adjacent states. During this study one new species of Sciomyzidac, Dictya behrmani Murphy, was described from Indiana, and a species previously known from a single specimen collected in 1921 was discovered in 11 Indiana counties, reared, and all life stages were described. Included are locality records and distribution maps; data on habitat, seasonal distribution, natural history, and larval feeding habits; references to descriptions of immature stages: and illustrated keys to adults. Tetanocera iowensis Steyskal, 1938, is placed as a new synonym of Tetanocera vidua Macquart, 1843."

Sciomyzidae of northeastern North America
By Schorno S., Marshall S.A., Murphy W.L., Muzzatti M.
Canadian Journal of Arthropod Identification 35: 1-331, 2019

The marsh flies of California: (Diptera, Sciomyzidae)
By Fisher T.W., Orth R.E.
Bull. Cal. Insect Survey 24, vii+117 pp., 1983

The snail-killing flies of Alaska (Diptera: Sciomyzidae)
By Foote, B. A.; Knutson, L. V.; and Keiper, J. B.
Insecta Mundi, 1999
Included because of a good drawing of characters: subalare and vallar bristle in Sciomyzidae.
Available at:

Comparative morphology of the male terminalia of Tephritidae and other Cyclorrhapha
By Sueyoshi M.
Isr. J. Entomol. 35: 477-496, 2005

New Diptera from North and Central America
By Curran C.H.
Am. Mus. novitates 415: 1-16, 1930

DIPTERA: an Introduction to Flies
By Nikita Vikhrev
Phyton publisher, Moscow, 2020
Available on NHBS (UK):
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

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