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Published online by Cambridge University Press: 31 May 2012
Apparently, the male of Cyrtolobus griseus Van Duzee (Stud. N.A. Memb. 90.16, 1908) has never been described. The following is a description of a male which is here designated the allotype. This specimen was collected in the University of Wisconsin Arboretum, Madison, July 21, 1950 from bur oak (Quercus macrocarpa Michx.). The allotype is in the author's collection.