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About true flies

Flesh-fly, Sarcophaga carnaria

True flies include crane-flies, mosquitoes, midges, horse-flies, hover-flies, blow-flies and house-flies.

Unlike the majority of insects flies do not possess the usual two pairs of wings but have only a single, membranous pair.

Some families of flies, such as hover-flies, are brightly coloured and conspicuous. These are often seen feeding on flowers.

Adult flies feed on liquids including fluids from decaying animals, plants and animal dung, nectar and the blood of birds and mammals. A handful of species associated with humans and farming practices are able to spread bacterial diseases. Many others are a nuisance in high numbers, particularly the biting species of mosquitoes, midges and horse-flies.

The larvae of the majority of fly species play a vital role in the decomposition of dead animals and plants

Number of UK species: about 6,600

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Re: Hoverfly? 3 months ago by jaguarondi jaguarondi
Re: Identification Req'd please - Winter Gnats? 4 months ago by flecc flecc
Re: Fly? Found near water at Cheddar Gorge - help with ID 6 months ago by Lucanus123 Lucanus123
Re: Fly ID? 6 months ago by Pralinsky Pralinsky
Re: Unknown fly 6 months ago by Lucanus123 Lucanus123
Re: Cluster flies? 6 months ago by Chapel Leigh Chapel Leigh
Re: I WISH I HADN'T LET A LITTLE MIDGE FLY BITE ME. OUCH!!! 6 months ago by jaguarondi jaguarondi
Re: help identifying a fly please 7 months ago by flecc flecc
Re: Crane fly ID help needed! 7 months ago by CXD CXD
Re: Ladybird - Fly ? 9 months ago by Andy Andy
Re: Unidentified fly 9 months ago by Chapel Leigh Chapel Leigh
Re: Sphaerophora - but which species? 9 months ago by flecc flecc
Re: fly with iridescent wing markings 9 months ago by AlanS AlanS
Re: What species of fly is this? 10 months ago by Laverock Laverock
Re: Hoverfly ID 10 months ago by Laverock Laverock
Re: Offering a Supporting Hand to Flies? 10 months ago by Microbe Microbe
Re: Bluebottle fly ident 10 months ago by lucy lucy
Fly ID 10 months ago by Pralinsky Pralinsky
A couple of flies for i.d. please 11 months ago by brian f brian f
Bee-fly ID required 11 months ago by Hairstreak Hairstreak
Re: Stripey fly? 11 months ago by AlanS AlanS
Re: Small fly found on plant (Germany) 12 months ago by Steve Jelf Steve Jelf
Re: Who are the protagonists? 12 months ago by Microbe Microbe
Re: What type of fly? 12 months ago by awillkey awillkey
Re: Fly for identification 1 year ago by flecc flecc
Re: Fly or other type of insect? 1 year ago by jaguarondi jaguarondi
Re: ID for horse-fly found in Zambia? 1 year ago by Florin - Museum ID team Florin - Museum ID team
Re: Identification please of this beastie. 1 year ago by Abhurite Abhurite
Re: Robber Fly 1 year ago by Wodwo Wodwo
Re: I spotted this huge (c. 20mm) fly in Devon. Totally black. Can anyone identify it? 1 year ago by Wodwo Wodwo

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