Isognathus rimosa (rimosus sphinx) is a moth of the family Sphingidae. It is known from tropical climates from northern Brazil north through Central America, the West Indies and Mexico to southern Arizona. The wingspan is 70–102 mm. The upperside of the female forewing is mostly gray brown on the front half and dark brown on the rear half while the upperside of male forewing is yellow gray or gray brown. Both sexes have wavy dark markings. The upperside of the hindwing of both sexes is yellow with an incomplete dark border on the outer margin.