@article {26886,
	title = {Variation, distribution and evolution of the Tabanus (Hybomitra) frontalis complex of horse flies (Diptera: Tabanidae)},
	volume = {93},
	year = {1961},
	pages = {894-924},
	publisher = {The Canadian Entomologist},
	author = {McAlpine, J. F.}
}
