Lygropia falsalis is a moth in the family Crambidae. It was described by Harrison Gray Dyar Jr. in 1918. It is found in Mexico.[1]
The wingspan is about 19 mm. The forewings are pale subhyaline yellow with a purple-brown costa. There is a spot in the base of the cell. The outer margin is purple brown at the apex. The hindwings have a purple-brown border and a round black discal dot.[2]