On the Ecology and Systematics of Coloradan Bumblebees Thesis directed by Associate Professor Ruth A. Bernstein This dissertation consists of two distinct parts: an exploration of two ecological questions, and an artificial key to and descriptions of the bumblebee species of Colorado.
Byron, Peggy Ann, "On the Ecology and Systematics of Coloradan Bumblebees" (1980). Bu. Paper 80.
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