@article {686,
	title = {Beitrag zur Kenntnis der Syrphidenfauna von Ceylon (Dipt.)},
	journal = {Revue Suisse de Zoologie},
	volume = {65},
	year = {1958},
	pages = {185-239},
	keywords = {Calcaretropidia, Calcaretropidia triangulifera (Keiser), Eosphaerophoria, Eosphaerophoria dentiscutellata (Keiser)},
	author = {Keiser, Fred}
}
@article {1114,
	title = {Paramixogaster wegneri, ein neuer Syrphidae von der Insel Ambon, Indonesia (Dipt.)},
	journal = {Mitteilungen der Schweizerischen Entomologischen Gesellschaft},
	volume = {37},
	year = {1964},
	pages = {83-87},
	keywords = {Paramixogaster, Paramixogaster wegneri Keiser},
	author = {Keiser, Fred}
}
@article {2865,
	title = {Syrphidae von Madagaskar (Dipt.)},
	journal = {Verhandlungen der Naturforschenden Gesellschaft in Basel},
	volume = {81},
	year = {1971},
	pages = {223-318},
	keywords = {Calcaretropidia, Calcaretropidia pandani Keiser},
	author = {Keiser, Fred}
}
@article {305,
	title = {Syrphidae von Madagaskar (Dipt.)},
	journal = {Verhandlungen der Naturforschenden Gesellschaft in Basal},
	volume = {81},
	year = {1971},
	pages = {223-318},
	keywords = {Eristalinae, Megodon, Megodon stuckenbergi Keiser, Microdon (Hovamicrodon), Microdon (Hovamicrodon) silvester Keiser, Microdontinae, Syrphidae, Syrphinae},
	author = {Keiser, Fred}
}
