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Published online by Cambridge University Press: 31 May 2012
In the Canadian Entomologist (1882 and 1883) Marten describes 7 species of Tabanus from the western United States of which the location of the types is unfortunately unknown. Certain characters now considered essential for comparative analysis were not adequately treated by him and as the descriptions were apparently based on damaged specimens in 2 instances, and on very restricted numbers in others, some confusion has arisen as to the identity of certain of these species.