Anthidium semicirculare is a species of bee in the family Megachilidae, the leaf-cutter, carder, or mason bees.Griswold, T., and J. S. Ascher., 2005, Checklist of Apoidea of North America (including Central America and the Caribbean)Catalogue of Life : 2009 Annual Checklist : Literature references
Synonyms Synonyms for this species include: Anthidium (Anthidium) incurvatum_homonym Pasteels, 1980
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