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Some Possible Effects of the Pleistocene on the Distributions of North American Scarabaeidae (Coleoptera)

Published online by Cambridge University Press:  31 May 2012

Henry F. Howden
Affiliation:
Entomology Research Institute, Research Branch, Canada Department of Agriculture, Ottawa, Ontario

Abstract

Factors, i.e., time, climate, and isolation, that have or may possibly have influenced the distribution and speciation of Scarabaeidae in North America are discussed. Specific examples of present distributional patterns in the genera Phyllophaga, Serica, Diplotaxis, Onthophagus, Geotrupes and Trox are mapped and described. A general comparison of the distributional patterns is made, and inferences are drawn concerning centers of dispersal and (or) areas of survival of the insect inhabitants of deserts and temperate forests during the various climatic changes of the Pleistocene.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1966

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