@book {59940,
	title = {Sopra alcuni nuovi generi di insetti ditteri. Memoria seconda per servir alla ditterologia italiana},
	year = {1840},
	pages = {28 pp.},
	publisher = {Donati},
	organization = {Donati},
	address = {Parma},
	author = {Rondani, C.}
}
@article {50880,
	title = {Erster Nachtrag zu dem im Jahre 1834 bekannt gemachten Verzeichnisse in W{\"u}ttemberg vorkommender zweifl{\"u}gliger Insekten},
	journal = {CorresBl. w{\"u}rtt. landw. Ver. Stuttg. (N.S.)},
	volume = {17},
	year = {1840},
	pages = {49-64},
	author = {Roser, C. F. L. von}
}
@article {21902,
	title = {M{\'e}moire sur les m{\'e}tamorphoses de plusieurs Larves fongivores appartenant {\`a} des Dipteres},
	journal = {Annales des Sciences Naturelles},
	volume = {ser. 2, vol. 13},
	year = {1840},
	pages = {148-163, pl. III},
	author = {Dufour, Leon}
}
@article {23059,
	title = {Systematisk Fortegnelse over de i Danmark hidtil funde Diptera. Tipularia Fungicolae},
	journal = {Naturhistorisk Tidsskrift},
	volume = {3},
	year = {1840},
	pages = {228-288},
	author = {Staeger, C.}
}
@book {23192,
	title = {An introduction to the modern classification of insects; founded on the natural habits and corresponding organisation of the different families},
	volume = {2},
	year = {1840},
	publisher = {Orme, Brown, Green and Longmans},
	organization = {Orme, Brown, Green and Longmans},
	address = {London},
	author = {Westwood, J. O.}
}
