"Aquatic and semiaquatic Heteroptera of the Grand Canyon (Insecta: Hemi" by John T. Polhemus and Martin S. Polhemus
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Great Basin Naturalist

Abstract

The aquatic and semiaquatic Hemiptera from 12 localities in Marble Canyon and Grand Canyon are reported, along with those from 1 locality in the Escalante Canyon. Fourteen species are recorded and compared to the water-bug fauna of the southwestern United States and western Mexico. Ochterus rotundus n. sp. is described from the Grand Canyon and the mountains of western Mexico.

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