Krombein, K.V., P.D. Hurd Jr., D.R. Smith, and B.D. Burks. 1979. Catalog of Hymenoptera in America north of Mexico. Vol.2. Apocrita (Aculeata). Smithsonian Instit. Press, Washington, D.C.
Solomon, J.D. 1995. Guide to Insect Borers of North American broadleaf trees and shrubs. Agric. Handbook. 706. Washington, D.C.: U.S. Department of Agriculture, Forest Service. 735 p.
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