@article {135,
	title = {Diptera. Family Syrphidae},
	journal = {Handbook for the identification of British Insects},
	volume = {10},
	number = {1},
	year = {1953},
	pages = {1-98},
	keywords = {Chrysotoxum, phylogenetic notes},
	author = {Coe, R. L.}
}
@article {435,
	title = {Key to the Palearctic species of the genus Orthoneura Macq.},
	year = {1953},
	keywords = {Key to species, Orthoneura, Orthonevra, Syrphidae},
	author = {Stackelberg, A.A.}
}
@article {184,
	title = {Notes and descriptions of some Mydaidae and Syrphidae (Diptera)},
	journal = {American Museum Novitates},
	volume = {1645},
	year = {1953},
	pages = {1-15},
	author = {Curran, C.H.}
}
@article {434,
	title = {The Palearctic [ibid.] species of the genus Orthoneura Macq. (Diptera, Syrphidae)},
	journal = {Entomological Review},
	volume = {XXXIII},
	year = {1953},
	pages = {1-21},
	type = {manuscript copy},
	keywords = {Diptera, Key to species, Orthoneura, Palaearctic, Syrphidae},
	author = {Stackelberg, A.A.}
}
