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Scellus

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Scellus
Scellus notatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Dolichopodidae
Subfamily: Hydrophorinae
Tribe: Hydrophorini
Genus: Scellus
Loew, 1857[1]
Type species
Hydrophorus spinimanus

Scellus is a genus of flies in the family Dolichopodidae.[3] It is distributed in the Palearctic and Nearctic.

Males of the genus have a pair of flag-like appendages, known as "signa" (singular "signum"), that emanate laterally from between the 4th and 5th abdominal segments. These appendages are connected together by a band under the sternites, forming a U-shaped structure called the "cingulum". It has been suggested by researchers that these appendages are used for visual signalling or pheromone dispersal during courtship. The genus Hydatostega also has a cingulum, but much reduced, suggesting that Scellus and Hydatostega are closely related.[4][5]

Species

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References

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  1. ^ Loew, Hermann (1857). "Neue Beiträge zur Kenntniss der Dipteren. Fünfter Beitrag". Programm der Königlichen Realschule zu Meseritz: 1–56.
  2. ^ a b Zetterstedt, J. W. (1842). Diptera Scandinaviae. Disposita et descripta (in Latin). Vol. 2. Lundae: Officina Lundbergiana. pp. 441–894. Retrieved 2019-12-16.
  3. ^ Yang, D.; Zhu, Y.; Wang, M.; Zhang, L. (2006). World Catalog of Dolichopodidae (Insecta: Diptera). Beijing: China Agricultural University Press. pp. 1–704. ISBN 9787811171020.
  4. ^ Runyon, Justin (2008). "The cingulum: A unique structure of some Dolichopodidae" (PDF). Fly Times (41): 3.
  5. ^ Schusteff, Aaron (16 December 2015). "Curated Scellus virago specimen from the CAS - Scellus virago - ♂". BugGuide. Retrieved 30 December 2023.
  6. ^ a b c Hurley, R. L. (1995). Griffiths, C.D.C. (ed.). Orthogenya Dolichopodidae. Hydrophorinae. in Flies of Nearctic Region. 6. Vol. 6. Stuttgart: E. Schweizerbartsche Verlagsbuchhandlung. pp. 113–224. ISBN 978-3-510-70021-9.
  7. ^ a b c d e Stackelberg, A. (1951). "Palaearctic species of the genus Scellus lw (Diptera Dolichopodidae)". Entomologicheskoe Obozrenie. 31: 595–608.
  8. ^ Curran, C. H. (1923). "An apparently undescribed species of Scellus (Dolichopodidae, Diptera)". Canadian Entomologist. 55: 73–74. doi:10.4039/ent5573-3.
  9. ^ a b Loew, H. (1864). "Monographs of the Diptera of North America". Smithson. Misc. Collect. 6 (Part II).
  10. ^ a b Van Duzee, M. C. "Scellus virago Aldrich (a two-winged fly) and two forms closely related to it". Proceedings of the California Academy of Sciences. 4th series. 14 (10): 175–183. Retrieved 16 July 2016.
  11. ^ Gerstaecker, A. (1864). "Uebersicht der in der Umgegend Berlins bis jetzt beobachteten Dolichopoden". Entomologischer Verein zu Stettin (in German). 25: 20–48.
  12. ^ Becker, T. (1908). "Dipteren der Kanarischen Inseln". Mitteilungen aus dem zoologischen Museum in Berlin (in German). 4. Berlin. Retrieved 5 October 2015.
  13. ^ Naglis, S. (2012). "New records of Hydrophorinae (Diptera, Dolichopodidae) from Turkey, with the description of a new species of Scellus Loew". Mitteilungen der Schweizerischen Entomologischen Gesellschaft. 85 (1–2): 45–49. doi:10.5169/seals-403038.
  14. ^ Harmston, F. C. (1939). "A new Scellus Dolichopodidae Diptera with key to males". Proceedings of the Utah Academy of Sciences. 16: 71–73.
  15. ^ a b Osten Sacken, Karl Robert (1877). "Western Diptera: Descriptions of new genera and species of Diptera from the region west of the Mississippi and especially from California". [U.S. Department of the Interior] Bulletin of the United States Geological and Geographical Survey of the Territories. 3: 189–354. Retrieved 10 July 2016.
  16. ^ Yang, D. (1998). "New and little known species of Dolichopodidae (Diptera) from China (II)". Bulletin de l'Institut royal des sciences naturelles de Belgique. Entomologie. 68: 165–176.
  17. ^ Aldrich, J. M. (1907). "The dipterous genus Scellus, with one new species". Entomological News Philadelphia. 19: 133–136. Retrieved 16 July 2016.