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Eumerus

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Eumerus
Female Eumerus feae
Scientific classification
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Genus:
Eumerus

Meigen, 1822
Type species
Syrphus tricolor
Fabricius, 1798
Species

See text

Synonyms
  • Paragopsis Matsumura, 1916[1]

Eumerus is a genus of hoverflies (family Syrphidae), within the tribe Eumerini.[2]

They are small with a distinctive smooth round abdomen, powerful back legs and yellow hairs around the scutellum. Others have a dark scutellum and yellow antennae. They have a flat hairy face and a reentrant upper crossvein on the wings.[3] Some species are pests of ornamental flowers.[4] The genus contains 281 known species, making it one of the largest genera of flies.

Description

Eumerus species are small to medium (5–12 mm), black hoverflies with a smooth wide, almost cylindrical body. The hind legs are remarkably powerful. They have compound eyes with fine hairs that in the male cover most of the head, but in the female are parted over the forehead. The antennae are quite short, dark coloured or orange. The face is flat with downwardly directed hairs. The thorax has a few light longitudinal stripes on its back which are more visible in the front half. The legs are yellowish, or white and black, with the upper back legs usually greatly thickened (except Eumerus flavitarsis), the lower part being curved and sharp, with expanded feet. The abdomen is roughly cylindrical, and clearly constricted at the boundaries between the various parts. The second, third and fourth part has silvery white or yellow oblique spots. In some species, the entire abdomen is a reddish brown. The wings are covered with fine hairs (microtrichia) on the entire surface. Otherwise they are clear except for a brown-black wing mark. The front cross-vein along the outer edge of the wing has a pronounced kink in the middle.[5]

Taxonomy

Species

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq Smith, Kenneth G.V.; Vockeroth, J.R. (1980). Crosskey, R.W. (ed.). Catalogue of the Diptera of the Afrotropical Region. London: British museum (Natural History). pp. 1–1436. ISBN 0-565-00821-8. {{cite book}}: |format= requires |url= (help); Cite has empty unknown parameter: |month= (help)
  2. ^ Doczkal, Dieter; Radenković, Snežana; Lyneborg, Leif; Pape, Thomas (2016). "Taxonomic revision of the Afrotropical genus Megatrigon Johnson, 1898 (Diptera: Syrphidae)". European Journal of Taxonomy. 238: 1–36. ISSN 2118-9773. Retrieved 21 October 2016.
  3. ^ a b c d e Stubbs, Alan E.; Falk,, Steven J. (2002). British Hoverflies: An Illustrated Identification Guide (2nd of Revised ed.). British Entomological and Natural History Society. p. 469. ISBN 978-1-899935-05-5.{{cite book}}: CS1 maint: extra punctuation (link)
  4. ^ Thompson, F. Christian; Rotheray, Graham E.; Zumbado, Manuel A. (2010). "53". In Brown, B.V.; Borkent, A.; Cumming, J.M.; Wood, D.M.; Woodley, N.E.; Zumbado, M. (eds.). Manual of Central American Diptera (Print). Vol. 2. Ottawa, Canada: NRC Research Press. pp. 763–792. ISBN 0-660-19958-0.
  5. ^ Hippa, H.; Ståhls, G. (2005). "Morphological characters of adult Syrphidae: descriptions and phylogenetic utility". Acta Zoologica Fennica. 215: 1–72.
  6. ^ Sack, P. (1933). "Schwedisch-chinesische wissenschaftliche Expedition nach den nordwestlichen Provinzen Chinas, unter Leitung von Dr. Sven Hedin und Prof. Su Ping-chang". Ark. Zool. 26 (A): 1–9.
  7. ^ a b c d e f g Khaghaninia, Samad; Shakeryari, Abbas; Rüstem, Hayat (2012). "First record of the genus Trichopsomyia Williston, 1888 (Diptera: Syrphidae) from Iran" (PDF). Turkish Journal of Zoology. 36 (5). Ankara: Tubitak: 725–727. doi:10.3906/zoo-1110-13. ISSN 1303-6114. Retrieved 5 July 2013.
  8. ^ a b c d e f g h i j k l Keiser, F. (1971). "Syrphidae von Madagaskar (Dipt.)". Verhandlungen der Naturforschenden Gesellschaft in Basal. 81. ngib: 223–318.
  9. ^ a b c d e f g h i j k l m n o p q Van Veen, M.P. (2004). Hoverflies of Northwest Europe, Identification Keys to the Syrphidae (Hardback). Utrecht: KNNV Publishing. p. 254. ISBN 90-5011-199-8.
  10. ^ a b c d e f g h i j k l m n o p q r Barkalov, A.V. "collection of Siberian Zoological Museum: Syrphidae". Siberian Zoological Museum. Archived from the original on 20 October 2008. Retrieved 19 July 2013. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  11. ^ a b c d e f g Doesburg, P. H. van (1955). "Syrphidae from South Africa I". Annals of the Transvaal Museum. 22. Transvaal Museum: 354–366.
  12. ^ a b c d e f g h i j k l m n o Hull, Frank M. (1964). "Diptera (Brachycera) Syrphidae". South African Animal Life. 10: 442–496.
  13. ^ Lindner, Edwin (1969). "Zur Kenntnis einiger sudeuropaischer Eumerus-Arten(Diptera., Syrphidae)" (PDF). Bonner zoologische Beiträge. 20 (4): 341–344.
  14. ^ a b c van Doesburg, P. H. (1966). "Three new species of Eumerus from South Africa". Entomologische Berichten. 26: 127–130.
  15. ^ a b c d e f g h Bartsch, Hans (2009). Tvåvingar: Blomflugor Diptera: Syrphidae: Eristalinae & Microdontinae [Flies: hoverfly Diptera: Syrphidae: Eristalinae & Microdontinae]. Nationalnyckeln/en/ (in Swedish). Vol. 2. The Swedish Taxonomy Initiative. pp. 1–478. ISBN 9789188506702. {{cite book}}: |format= requires |url= (help)
  16. ^ a b c d Chandler, Peter J. (1998). Checklists of Insects of the British Isles (New Series) Part 1: Diptera. Handbooks for the Identification of British Insects. Vol. 12. Royal Entomological Society. pp. 1–234. {{cite book}}: |access-date= requires |url= (help)
  17. ^ a b c Stackelberg, A. A. (1949). "Novye dannye po rodu Eumerus Mg. (Diptera, Syrphidae) palearcticheskoy fauny". Ent. Obozr. (in Russian). 30: 426–439.
  18. ^ Goot, V. S. van der . (1966). "Two new species of Syrphidae (Dipt.) from Spain". Entomologische berichten. 26. Amsterdam: Nederlandse Entomologische Vereniging: 179–183.
  19. ^ Claussen, C.; Lucas, J. A. W. (1988). "Zur Kenntnis der Schwebfliegenfauna der Isnel Kreta with des Beschreibung von Eumerous minotaurus sp. n. (Diptera, Syrphidae)" (PDF). Entomofauna. 9: 133–168. Retrieved 23 June 2015.
  20. ^ Wright, Adam S. (2013). "Eumerus sogdianus Stackelberg (Diptera, Syrphidae) new to Britain". Dipterists Digest. 2. 20 (1). Dipterists Forum: 15–16.
  • Data related to Eumerus at Wikispecies