@article {1280,
	title = {New and little known Utah Pipunculidae (Diptera)},
	journal = {The Canadian Entomologist},
	volume = {71},
	year = {1939},
	pages = {87-91},
	address = {Ottawa},
	keywords = {new species, Pipunculidae, Utah},
	author = {Hardy, D. E. and Knowlton, G. F.}
}
@article {1373,
	title = {The beet leafhopper in northern Utah},
	journal = {Bull Utah agric. Exp. Sta. Bull.},
	volume = {234},
	year = {1932},
	pages = {1-64},
	keywords = {beet leafhopper, Pipunculidae, Utah},
	author = {Knowlton, G. F.}
}
@article {1374,
	title = {Notes on injurious Utah insects},
	journal = {Proc. Utah Acad. Sci.},
	volume = {10},
	year = {1933},
	pages = {153, 159-162},
	keywords = {injurious insects, parasitoid, Pipunculidae, Pipunculus sp., Utah},
	author = {Knowlton, G. F.}
}
@article {1377,
	title = {Notes on some beneficial Utah Diptera},
	journal = {Rev. App. Ent. Ser. A},
	volume = {19},
	year = {1931},
	pages = {629},
	keywords = {beneficial, Diptera, Pipunculidae, Pipunculus subvirescens, Utah},
	author = {Knowlton, G. F. and Janes, M. J.}
}
