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Published online by Cambridge University Press: 31 May 2012
The following survey is based on collections made in Iowa from March, 1929 to February, 1930. It isnot all-inclusive, as intensive collecting was carried on in only a very small area in central Iowa, in the vicinity of Ames. It is hoped however, that the list will be of value in extending the limits of distribution of several species.
* —Contribution from the Department of Zoology and Entomology, Iowa State College, Ames.