| 词条 | Eristalis cryptarum |
| 释义 |
|image = Britishentomologyvolume8Plate432.jpg |image_caption = Eristalis cryptarum depicted in British Entomology | regnum = Animalia | phylum = Arthropoda | classis = Insecta | ordo = Diptera | familia = Syrphidae | subfamilia = Eristalinae | tribus = Eristalini | genus = Eristalis | subgenus = Eoseristalis | species = E. cryptarum | binomial = Eristalis cryptarum | binomial_authority = (Fabricius, 1794) | synonyms = *Eristalis nubilipennis Curtis, 1832
}}Eristalis cryptarum is a European species of hoverfly.[1][2] Known as the bog hoverfly, it only lives in and around wet heathland and valley mires. Its larvae are assumed to live in peat that is saturated with water, such as that found in these boggy areas.[3][4] The female has been observed deposting eggs on and close to very fresh cow dung along oligotrophic seepages in moorland. E. cryptarum has a wide distribution across central and northern Europe and East to Siberia and Mongolia.[5][6]In England, it was once found in all southwestern counties as far east as the New Forest, but since the middle of the 20th century its range has contracted, for unknown reasons, and it is only now found at a few sites on Dartmoor, Devon. In Denmark it is considered critically endangered, possibly extinct.[4] DescriptionExternal imagesFor terms see Morphology of Diptera Wing length 6·5–10 mm.Last antennomere reddish. Scutellum various shades of reddish-orange or yellow. Tergites 2-4 whitish pale hind margins. Pubescence mainly orange.Costal wing edge infuscate.Tibia 1-3 entirely orange. [7][8][9][10]The male genitalia are figured by Hippa et al. (2001) [11] The larva is undescribed. References1. ^{{cite book |last= Van Veen |first= M.P. |title= Hoverflies of Northwest Europe, Identification Keys to the Syrphidae |type= Hardback |year= 2004 |publisher= KNNV Publishing |location= Utrecht |isbn= 90-5011-199-8 |pages= 254 }} {{Taxonbar|from=Q2746670}}{{Syrphidae-stub}}2. ^{{cite book|author1=Stubbs, Alan E. |author2=Falk, Steven J.|year=1983 |title=British Hoverflies: An Illustrated Identification Guide |publisher=British Entomological & Natural History Society|page=253, xvpp}} 3. ^{{cite journal | last = Speight | first = M.C.D. | year = 2011 | title = Species accounts of European Syrphidae (Diptera)| journal = Syrph the Net, the database of European Syrphidae | volume = 65 | pages = 285pp | url= http://www.diptera.info/downloads/StN_Species_Accounts_Glasgow_2011.pdf }} 4. ^1 {{cite web |url = http://www.ukbap.org.uk/UKPlans.aspx?ID=288 |title = Action plan for Eristalis cryptarum |publisher = UK Biodiversity Action Plan |accessdate = 2010-11-27 |deadurl = yes |archiveurl = https://web.archive.org/web/20090713132108/http://www.ukbap.org.uk/UKPlans.aspx?ID=288 |archivedate = 2009-07-13 |df = }} 5. ^Fauna Europaea 6. ^Peck, L.V. (1988) Syrphidae. In: Soos, A. & Papp, L. (eds.) Catalogue of Palaearctic Diptera, 8: 11-230. Akad.Kiado, Budapest. 7. ^Van Veen, M. (2004) Hoverflies of Northwest Europe: identification keys to the Syrphidae. 256pp. KNNV Publishing, Utrecht.addendum 8. ^Van der Goot,V.S. (1981) De zweefvliegen van Noordwest - Europa en Europees Rusland, in het bijzonder van de Benelux. KNNV, Uitgave no.32: 275pp. Amsterdam. 9. ^Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Part I. Amerind Publishing Co., New Delhi. {{ISBN|81-205-0080-6}}. 10. ^Coe, R.L. (1953) Diptera: Syrphidae. Handbks.ident.Br.insects, 10(1): 1-98. R.ent.Soc.London. pdf 11. ^Hippa, H., Nielsen, T.R. & van Steenis, J. (2001) The west Palaearctic species of the genus EristalisLatreille (Diptera, Surphidae). Norw.J.Entomol., 48: 289-327. 3 : Diptera of Europe|Hoverflies|Insects described in 1794 |
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