A new genus, Proacerella (Acerentomidae), and six new species, Proacerella reducta, Eosentomon prutzi, E. sociale, E. pomari, E. brassicae, and Protentomon michiganense are described from various sites in Michigan. Records of previously described species are also listed \u27for the species Eosentomon vermiforme Ewing, E. wheeleri Silvestri, Proturentomon iowaense Womersley, Acerentulus confinis (Berlese), Amerentulus americanus (Ewing), and Yamatentomon barberi (Ewing)
