Three new species of Palmanura are described and illustrated. Palmanura sernaius, new species, of Colombia differs from most Palmanura species in having more abundant and barbulate rather than palmate chaetotaxy. The Mexican Palmanura goyai, new species, lacks the cephalic seta “G” and is the biggest in the genus (1.1 mm), while Palmanura hieronimus, new species, presents the cephalic seta “G,” has only one palmate seta on the dorsolateral cephalic tubercle and it is very small (0.55 mm). A key for the species in the genus is included.