Parammoplanus (Pate) is reviewed and redescribed. Relationships between Parammoplanus, Ammoplanus and Ammoplanellus are discussed. Sixteen new species are described: brooksi, cavifrons, flavidus, foveatus, griswoldi, heydoni, hiatus, irwini, montanus, parkeri, succinacius, texanus, verrucosus, woolleyi, yanegai and zolnerowichi using male genitalia to help designate species limits. The subspecies lenape lenape (Pate) and lenape olamentke (Pate) are raised to the specific level. Two species groups, Irwini and Olamentke are defined. A key to the species is included.