The Nearctic Species ofOncopsis(Homoptera: Cicadellidae)

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Abstract
The following are notes on the taxonomies and synonymies, and on the distributions in Canada, of the Nearctic species of leafhoppers of the genusOncopsisBurmeister. Twenty-one species referable to this genus have been described from the Nearctic region. Seventeen were listed as valid species by Oman (1949), underOncopsis, Macropsis, andZinneca. One is probably not a Nearctic species. In the present paper 14 names are considered to be synonyms. This reduces the number of Nearctic species to seven, including one new species described below. Wagner (1949) discussed six species found in Germany. Of these, two were new and the remaining four had been described under a total of 14 names.

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