@article {21816,
	title = {British fossil insects},
	journal = {Proceedings of the United States National Museum},
	volume = {49},
	number = {2119},
	year = {1915},
	pages = {469-499, pl. 60-66},
	author = {Cockerell, Theodore Dru Alison}
}
@article {21819,
	title = {Eocene insecta from the Rocky Mountains},
	journal = {Proceedings of the United States National Museum},
	volume = {57},
	number = {2313},
	year = {1920},
	pages = {233-260, 5 pl.},
	author = {Cockerell, Theodore Dru Alison}
}
@article {21855,
	title = {New Diptera in the U.S. National Museum},
	journal = {Proceedings of the United States National Museum},
	volume = {23},
	number = {1225},
	year = {1901},
	pages = {593-618},
	url = {http://www.online-keys.net/sciaroidea/add01/Coquillett_1901_Diptera_National_Museum.pdf},
	author = {Coquillett, D. W.}
}
@article {21856,
	title = {A systematic arrangement of the families of the Diptera},
	journal = {Proceedings of the United States National Museum},
	volume = {23},
	year = {1901},
	pages = {653-658},
	author = {Coquillett, D. W.}
}
@article {21860,
	title = {The type-species of the North American genera of Diptera},
	journal = {Proceedings of the United States National Museum},
	volume = {37},
	year = {1910},
	pages = {499-647},
	author = {Coquillett, D. W.}
}
@article {21822,
	title = {Fossil insects in the United States National Museum},
	journal = {Proceedings of the United States National Museum},
	volume = {64},
	number = {2503},
	year = {1924},
	pages = {1-15, 2 pl., 2 fig.},
	author = {Cockerell, Theodore Dru Alison}
}
