Theodore B. Mitchell

• A generic revision of the Megachiline bees of the Western Hemisphere (Hymenoptera: Megachilidae)
• A subgeneric revision of the bees of the genus Coelioxys of the Western Hemisphere (Hymenoptara: Megachilidae)
• A revision of the genus Megachile in the Nearctic region
• A revision of the genus Megachile in the Neartic Region (Hymenoptera
• Bees of the Eastern United States