Itaballia demophile, the cross-barred white, crossbarred white, or black-banded white, is a butterfly in the Pieridae family. It is found from the southern United States, and Mexico to Paraguay. The habitat consists of disturbed areas including forest clearings, riverbanks, roadsides, fields, cattle pastures and wasteland. The wingspan is 30–35 mm (1.2–1.4 in). The larvae feed on the leaves of Capparis species, including Capparis indica, and Capparis frondosa.