Template:Williston, 1887

• Williston, S.W. 1887. Synopsis of the North American Syrphidae. Bulletin of the United States National Museum [1886] 31: xxx + 335 pp., 12 pls. hdl: 10088/10244 BHL  
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References

• Reference Detail Record. Systema Dipterorum (www.diptera.org) version 6.0, last updated 3 February 2025. Evenhuis, N.L. & Pape, T.. Accessed: 13 April 2025.
• Thompson, F.C., Evenhuis, N.L. & Sabrosky, C.W., 1999. Bibliography of the Family-Group Names of Diptera. Pp. 364–574. In: Thompson, F.C. (ed.). Family-group names in Diptera and Bibliography. Myia 10: 576 pp. ISBN 978-90-5782-026-7. PDF. hdl: 10088/17089 Reference page.