@article {60603,
	title = {[Sumatraansche Dipteren]},
	journal = {Tijdschrift voor Entomologie},
	volume = {64},
	year = {1921},
	pages = {lii-liii},
	author = {Meijere, Johannes Cornelis Hendrik de}
}
@inbook {49354,
	title = {Svensk Insektfauna 11. Tv{\r a}vingar. Diptera. F{\"o}rsta underordningen Orthorapha. F{\"o}rsta gruppen myggor. Nematocera. Fam. 12-13},
	booktitle = {Svensk Insektfauna 11. Tv{\r a}vingar. Diptera. 1. Orthorapha. F{\"o}rsta gruppen myggor. Nematocera},
	year = {1921},
	pages = {141-273},
	publisher = {Entomologiska F{\"o}reningen i Stockholm, Almquist \& Wiksells Boktryckeri},
	organization = {Entomologiska F{\"o}reningen i Stockholm, Almquist \& Wiksells Boktryckeri},
	address = {Uppsala \& Stockholm},
	author = {Wahlgren, Einar}
}
@article {23788,
	title = {12. Fam. Svampmyggor. Fungivorid{\ae} (Mycetophilid{\ae}).},
	journal = {Svensk insektfauna},
	volume = {11},
	number = {1},
	year = {1921},
	pages = {141-204},
	url = {http://www.online-keys.net/sciaroidea/1921_30/Wahlgren_1921_Tvavinger_Diptera.pdf},
	author = {Wahlgren, E.}
}
@article {21820,
	title = {Fossil Arthropods in the British Museum. VI. Oligocene insects from Garnet Bay, Isle of Wight},
	journal = {Annals of Natural History},
	volume = {7},
	year = {1921},
	pages = {453-480},
	author = {Cockerell, Theodore Dru Alison}
}
@article {21836,
	title = {Diptera from the Pribilof Islands, Alaska},
	journal = {Proceedings of the California Academy of Sciences},
	volume = {4th series, vol. 11},
	year = {1921},
	pages = {169-177},
	url = {http://www.online-keys.net/sciaroidea/add01/Cole_1921_Diptera_from_Alaska.pdf},
	author = {Cole, F. R.}
}
@article {21838,
	title = {An annotated list of the Diptera (flies) of Oregon},
	journal = {Proceedings of the California Academy of Sciences},
	volume = {4th series, vol. 11},
	year = {1921},
	pages = {197-344},
	author = {Cole, F. R. and Lovett, A. L.}
}
@article {21956,
	title = {Diptera Nematocera from Arran and Loch Etive},
	journal = {Scottish Naturalist},
	year = {1921},
	pages = {49-61, 89-92, 121-125},
	author = {Edwards, Frederick Wallace}
}
@article {21958,
	title = {A note on the dipterous subfamily Ditomyiinae, with description of new recent and fossil forms},
	journal = {Annals and Magazine of Natural History},
	volume = {ser. 9, vol. 7},
	year = {1921},
	pages = {431-437},
	url = {http://www.online-keys.net/sciaroidea/add01/Edwards_1921_Ditomyinae.pdf},
	author = {Edwards, Frederick Wallace}
}
@article {22958,
	title = {New Ceylon Diptera},
	journal = {Spolia Zeilanica},
	volume = {11},
	year = {1921},
	pages = {381-395, 2 pl.},
	url = {http://www.online-keys.net/sciaroidea/1921_30/Senior-White_1921_Diptera_of_Celyon.pdf},
	author = {Senior-White, R. A.}
}
@article {23001,
	title = {New species of Mycetophilidae},
	journal = {Proceedings of the Entomological Society of British Columbia},
	volume = {16},
	year = {1921},
	pages = {16-21},
	url = {http://www.online-keys.net/sciaroidea/1911_20/Sherman_1920_New_species_of_Mycetophilidae_sp_n.pdf},
	author = {Sherman, R. S.}
}
@article {23126,
	title = {[TITLE BLANK]},
	journal = {Bulletin de la Soci{\'e}t{\'e} Entomologique de Belgique},
	volume = {3},
	year = {1921},
	pages = {22},
	abstract = {Macrocera nigropicea Lund. in Belgium},
	author = {Tonnoir, A. L.}
}
@article {23189,
	title = {A bibliography on fungous insects and their hosts},
	journal = {Entomological News},
	volume = {32},
	year = {1921},
	pages = {45-47},
	author = {Weiss, Harry B.}
}
@article {23190,
	title = {Diptera and Fungi},
	journal = {Proceedings of the Biological Society of Washington},
	volume = {34},
	year = {1921},
	pages = {85-88},
	author = {Weiss, Harry B.}
}
@article {23267,
	title = {Attachment of the Abdomen to the Thorax in Diptera},
	journal = {Memoirs of the Cornell University Agricultural Experiment Station},
	volume = {44},
	year = {1921},
	pages = {251-256},
	author = {Young, Benjamn P.}
}
@article {21957,
	title = {Resting position of some nematocerous Diptera},
	journal = {Entomologist{\textquoteright}s Monthly Magazine},
	volume = {57},
	year = {1921},
	pages = {22-26},
	author = {Edwards, Frederick Wallace}
}
