Udea curvata is a moth in the Crambidae family. It is found in China (Tibet). The wingspan is 25.5–28.5 mm. The forewings are yellow, scattered with brown scales, the markings grey-brown. The antemedian line from the costal one-fourth is sinuated to one-third of the posterior margin. The proximal cellular stigma is circular and the distal cellular stigma is kidney-shaped. The postmedian line is zigzaggy serrate, from the costal three-fourths, excurved around the cell, and strongly inflexed below the distal cellular stigma, then to two-thirds on the posterior margin. The postmedian area is strongly dusted with grey and alternately formed grey and yellow streaks. The vein ends on the wing margin each with a small brown dot. The fringe is yellow, the basal one-fourth grey. The hindwings are p