Hahncappsia cayugalis is a moth in the family Crambidae described by Hahn William Capps in 1967. It is found in Guatemala, Costa Rica and Mexico (San Luis PotosÃÂ, Morelos, Chiapas, Veracruz).
The wingspan is 21âÂÂ25 mm for males and 26âÂÂ28 mm for females. Adults have been recorded on wing from April to October.