@article {2909,
	title = {New or little known genera of North American Syrphidae},
	journal = {The Canadian Entomologist},
	volume = {14},
	year = {1882},
	pages = {77-80},
	keywords = {Hadromyia, Hadromyia (Hadromyia), Hadromyia (Hadromyia) grandis Williston},
	url = {http://www.biodiversitylibrary.org/item/26368$\#$page/85/mode/1up},
	author = {Williston, S.W.}
}
@article {601,
	title = {Contribution to a monograph of the North American Syrphidae},
	journal = {Proceedings of the American Philosophical Society},
	volume = {20},
	year = {1882},
	pages = {299-332},
	author = {Williston, S.W.}
}
@inbook {603,
	title = {Fam. Syrphidae [conc.]; Fam. Conopidae; Fam. Pipunculidae},
	booktitle = {Biologia Centrali Americana, Zoologia - Insecta - Diptera},
	volume = {3},
	year = {1892},
	note = {2 plates},
	pages = {pp. 52-72, 73-79, pl. 1, pl. 2, figs. 1-12; pp. 79-86, pl. 2, figs. 13-14; pp. 86-88},
	address = {London},
	keywords = {Conopidae, Neotropical, Pipunculidae},
	url = {http://www.sil.si.edu/digitalcollections/bca/navigation/bca_16_03_00/bca_16_03_00select.cfm},
	author = {Williston, S.W.},
	editor = {Godman, F.D. and Salvin, O.}
}
@inbook {1809,
	title = {Fam. Syrphidae},
	booktitle = {Biologia Centrali Americana, Zoologia - Insecta - Diptera},
	volume = {3},
	year = {1891},
	pages = {1-56; 57-72; 73-78, pl. 1, 2, figs. 1-12},
	address = {London},
	url = {http://www.sil.si.edu/digitalcollections/bca/navigation/bca_16_03_00/bca_16_03_00select.cfm},
	author = {Williston, S.W.},
	editor = {Godman, F.D. and Salvin, O.}
}
@article {2398,
	title = {Diptera Brasiliana, ab H. H. Smith collecta. Part I, Stratiomyidae, Syrphidae},
	journal = {Transactions of the Entomological Society of America},
	volume = {15},
	year = {1888},
	pages = {243-292},
	keywords = {Ceriana (Sphiximorpha), Ceriana (Sphiximorpha) roederii (Williston), Habromyia, Habromyia coeruleithorax Williston},
	url = {http://www.biodiversitylibrary.org/bibliography/7830},
	author = {Williston, S.W.}
}
@article {602,
	title = {Synopsis of the North American Syrphidae},
	journal = {Bulletin of the United States National Museum},
	volume = {31},
	year = {1886},
	note = {actual date 1887},
	pages = {i-xxx, 1-335},
	keywords = {Syrphidae},
	author = {Williston, S.W.}
}
@article {1820,
	title = {Eine merkwurdige neue Syrphiden-Gattung},
	journal = {Wiener entomologische Zeitung},
	volume = {3},
	year = {1884},
	pages = {185-186},
	keywords = {Pelecocera, Pelecocera (Pelecocera), Pelecocera (Pelecocera) pergandei (Williston)},
	url = {http://www.biodiversitylibrary.org/item/43792},
	author = {Williston, S.W.}
}
