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Thesis (M.S.)—University of Nebraska—Lincoln, 1951. Department of Entomology.


Copyright 1951, the author. Used by permission.


Much research has been done on the life history, biology, and control of the species of this genus of insects. However, since control and life history studies are based on a knowledge of the species involved, it is necessary to study the “June beetles” with the aim of classifying them into natural groups. LeConte and Horn have both revised the genus, and their revision has formed the basis of most of the systematic work. Shortly after Horn’s revision, Smith figured and described the genitalia of most of the then known species. However, it remained for Böving to utilize this natural characteristic, the form of the genitalia, to form a basis for a systematic classification. In the light of Böving’s work, it was deemed advisable to revise the classification of the species of Phyllophage of Nebraska.

Representatives of sixteen of Böving’s twenty-one groups of species are found in Nebraska. The description and figures of the genitalia of thirty-six species are given in this paper, as well as the systematic classification of these species and remarks on the food plants and distribution in the state.

Advisor: R. E. Hill