@article {1053,
	title = {The British species of the sylvaticus-group of Pipunculus (Diptera)},
	journal = {The Entomologist{\textquoteright}s monthly Magazine},
	volume = {56},
	year = {1920},
	pages = {270-276},
	keywords = {Britain, Pipunculidae, Pipunculus sylvaticus-group},
	author = {Collin, J. E.}
}
@article {1664,
	title = {Studies on the life history and habits of the Beet Leafhopper},
	journal = {Journal of Agricultural Research},
	volume = {20},
	number = {4},
	year = {1920},
	note = {pp. 245-252 + 2 plates},
	pages = {245-252},
	keywords = {beet leafhopper, habits, life history, Pipunculidae},
	author = {Stahl, C. F.}
}
