@article {1926,
	title = {A study of some syrphid flies of South America},
	journal = {Revista de Entomologia, Brazil},
	volume = {15},
	year = {1944},
	pages = {34-54},
	keywords = {Ocyptamus (Calostigma), Ocyptamus (Calostigma) coreopsis (Hull)},
	author = {Hull, Frank M.}
}
@article {1651,
	title = {Some genera of flies of the family Syrphidae},
	journal = {Journal of the Washington Academy of Sciences},
	volume = {34},
	year = {1944},
	pages = {129-134},
	keywords = {Microdon (Kryptopyga), Microdon (Kryptopyga) pendulosus (Hull)},
	author = {Hull, Frank M.}
}
@article {2888,
	title = {Some syrphid fly genera (Diptera)},
	journal = {Entomological News},
	volume = {55},
	year = {1944},
	pages = {203-205},
	keywords = {Syrittosyrphus, Syrittosyrphus opacea Hull},
	url = {http://www.biodiversitylibrary.org/item/20239$\#$page/575/mode/1up},
	author = {Hull, F. M.}
}
@article {1102,
	title = {Studies of flower flies (Syrphidae) in the Vienna Museum (Natural History)},
	journal = {Journal of the Washington Academy of Sciences},
	volume = {34},
	year = {1944},
	pages = {398-404},
	keywords = {Microdon, Microdon (Omegasyrphus), Microdon (Omegasyrphus) biluminiferus Hull},
	author = {Hull, Frank M.}
}
