@article {568,
	title = {A review of the scarce and threatened flies of Great Britain. Part 6:  Syrphidae.},
	number = {9},
	year = {2014},
	pages = {1-130},
	institution = {Joint Nature Conservation Committee,  },
	address = {Peterborough},
	url = {http://jncc.defra.gov.uk/pdf/Review_of_Syrphidae_Final_Web.pdf},
	author = {S.G Ball and Morris, R}
}
