@book {552,
	title = {British Hoverflies. An Illustrated Identification Guide},
	year = {2002},
	pages = {469},
	publisher = {British Entomological \& Natural History Society},
	organization = {British Entomological \& Natural History Society},
	edition = {2nd},
	isbn = {1899935053},
	author = {Stubbs, A.E and Falk, S.J}
}
