Michael S. Engel

• Evolution of the insects
• A new species of the bee genus Eoanthidium with extraordinary male femoral organs from the Arabian Peninsula (Hymenoptera: Megachilidae)
• Evolution of the Insects
• Innumerable Insects
• New genera and subgenera of augochlorine bees (Hymenoptera: Halictidae)
• Classification of the bee tribe Augochlorini (Hymenoptera: Halictidae)
• Diverse Neuropterida in Cretaceous amber, with particular reference to the paleofauna of Myanmar (Insecta)
• Evolution of the Insects
• Insect Architecture