@article {23690,
	title = {On the structure of the larvae and the systematic position of the genera Mycetobia Meig., Ditomyia Winn. and Symmerus Walk. (Dipt., Mycetophilidae)},
	journal = {Annals and Magazine of natural History},
	volume = {9},
	number = {3},
	year = {1919},
	pages = {33-43},
	url = {http://www.online-keys.net/sciaroidea/add01/Keilin_1919_Mycetobia_Ditomyia_Symmerus.pdf},
	author = {Keilin, D,}
}
@article {22263,
	title = {On the srtucture of larvaeand the systematic position of the genera Mycetobia Mg., Ditomyia Winn. and Symmerus Walk. (Diptera, Nematocera)},
	journal = {Annals and Magazine of Natural History},
	volume = {3},
	year = {1919},
	pages = {33-42, 4 pl.},
	author = {Keilin, D.}
}
