| 词条 | Cluster fly |
| 释义 |
| name = Cluster flies | image = Pollenia-sp-Cluster-fly-20100718a.jpg | image_caption = Male Pollenia sp. | regnum = Animalia | phylum = Arthropoda | classis = Insecta | ordo = Diptera | familia = Calliphoridae | subfamilia = Polleniinae | genus = Pollenia | genus_authority = Robineau-Desvoidy, 1830 | type_species = Musca rudis[1] | type_species_authority = Fabricius, 1794 | subdivision_ranks = Species | subdivision = See text }} The cluster flies or attic flies are the genus Pollenia in the blowfly family Calliphoridae. Unlike more familiar blow flies, such as the bluebottle genus Phormia, they do not present a health hazard because they do not lay eggs in human food. They are strictly parasitic on earthworms; the females lay their eggs near earthworm burrows, and the larvae then infest the worms. However, the flies are a nuisance; when the adults emerge in the late summer or autumn, they enter houses to hibernate, often in large numbers; they are difficult to eradicate because they favour inaccessible spaces such as roof and wall cavities. They are often seen on windows of little-used rooms. The typical cluster fly Pollenia rudis is about 7 mm long and can be recognised by distinct lines or stripes behind the head, short golden-coloured hairs on the thorax, and irregular light and dark gray areas on the abdomen. Cluster flies are typically slow-moving. Cluster flies have a widespread distribution. Eight species are found in Britain and 31 in Europe. Pollenia species are also numerous in Australia and New Zealand (over 30 species); they are a common pest in North America. P. rudis has spread widely in association with humans. Species{{Div col}}
References1. ^{{cite journal | last = Sabrosky | first = Curtis W. | title = Family-Group Names in Diptera An annotated catalog | journal = MYIA, The International Journal of the North American Dipterists' Society | url = http://www.sel.barc.usda.gov/diptera/people/FCT_pdf/FGNAMES.pdf | volume = 10 | publisher = Backhuys Publishers | location = Leidan | date = 1999 | accessdate = 2008-05-31 | deadurl = yes | archiveurl = https://web.archive.org/web/20080411095829/http://www.sel.barc.usda.gov/Diptera/people/FCT_pdf/FGNAMES.pdf | archivedate = 11 April 2008 | df = dmy-all }} 2. ^{{cite web | url = http://www.faunaeur.org/full_results.php?id=10892 | title = Taxon details: Calliphoridae | accessdate = 2008-05-31 | last = Rognes | first = Dr Knut |author2=Pape, Dr Thomas | date = 19 April 2007 | work = Fauna Europaea version 1.1 }} External links{{Commonscat}}
5 : Calliphoridae|Articles containing video clips|Brachycera genera|Diptera of Europe|Taxa named by Jean-Baptiste Robineau-Desvoidy |
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