@book{81065,
	title = {"The systematics, phylogeny and zoogeography of symmerus Walker and Australo symmerus Freeman (Diptera : Mycetophilidae: Ditomyiinae)."},
	publisher = {Entomological Society of Canada},
	year = {1974},
	series = {Memoirs of the Entomologial society of Canada. No.92},
	address = {Ottawa}
}