Robert D. Gordon, 1999.
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Bob Gordon is a specialist in
the Coccinellidae and Aphodiinae, especially of North America.
He is now retired from his position with the Systematic Entomology
Laboratory of the U. S. Department of Agriculture (housed in
the U. S. National Collection in the Smithsonian Institution)
and lives in North Dakota. He is continuing his revisionary
studies of the Aphodius of North America. |