@article {2922,
	title = {Review of the American xylotine syrphid-flies},
	journal = {Proceedings of the United States National Museum},
	volume = {69},
	year = {1926},
	pages = {1-52},
	url = {http://si-pddr.si.edu/dspace/bitstream/10088/15651/1/USNMP-69_2635_1926.pdf},
	author = {Shannon, R.C.}
}
