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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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Small fly found on plant (Germany) 1 day ago by Sierra_101 Sierra_101
Re: Fly for identification 2 weeks ago by flecc flecc
Re: Fly or other type of insect? 1 month ago by jaguarondi jaguarondi
Re: ID for horse-fly found in Zambia? 6 months ago by Florin - Museum ID team Florin - Museum ID team
Re: Identification please of this beastie. 6 months ago by Abhurite Abhurite
Re: Robber Fly 6 months ago by Wodwo Wodwo
Re: I spotted this huge (c. 20mm) fly in Devon. Totally black. Can anyone identify it? 6 months ago by Wodwo Wodwo
Re: Tiny fly 6 months ago by Wodwo Wodwo
Re: What is this fly please? 9 months ago by BW BW
Re: Fly with a yellow head? 9 months ago by amwal amwal
Re: What species is this strange bee fly? 10 months ago by Demeni Demeni
Re: Can this be an Empis fly? 10 months ago by Prostomis Prostomis
Re: A magnificent Robber Fly 10 months ago by Mikdakin Mikdakin
Re: Emerging Fly ... 10 months ago by TRW TRW
Re: Help to identify two flies please 11 months ago by jaguarondi jaguarondi
Re: help please in identifying this Fly 11 months ago by stevenelawson stevenelawson
Cranefly I.D. 1 year ago by John John
Re: Fly id please 1 year ago by MikeHardman MikeHardman
Re: What kind of flies is this? 1 year ago by Samuel J Samuel J
Re: Fly seen in Cheshire farmland 1 year ago by ChrisE ChrisE
Re: Help with this fly please 1 year ago by Florin - Museum ID team Florin - Museum ID team
Re: Hovering horseflies 1 year ago by Martin Harvey Martin Harvey
Re: An unusual horsefly 1 year ago by Martin Harvey Martin Harvey
Re: Tiny fly identification? 1 year ago by Florin - Museum ID team Florin - Museum ID team
Re: Help to I.D. Fly Please. 1 year ago by Florin - Museum ID team Florin - Museum ID team
Re: need help with identification 1 year ago by Florin - Museum ID team Florin - Museum ID team
Re: Can any one identify this Eristalis? 1 year ago by phototoe phototoe
Re: Cranefly 1 year ago by jaguarondi jaguarondi
Re: Hoverflies 1 year ago by NatureNinja NatureNinja
Re: Help with ID please 1 year ago by Flower Lady Flower Lady

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