Udea daiclesalis is a moth in the Crambidae family. It was described by Walker in 1859. It is found in New Zealand. The wingspan is about 22 mm. The forewings are ferruginous-brown, irrorated with dark grey. The inner margin is rather broadly suffused with ochreous-orange from the base to three-fourths and there is a narrow ochreous-orange streak along the costa from the base to three-fourths, enclosinga very slender snow-white costal streak from one-fourth to two-thirds. The lines are thick, cloudy, dark grey and very indistinctly defined. The reniform is obscurely outlined with dark grey. The hindwings are light ochreous-yellowish with a dark-grey dot in the centre of the disc and partial indications of a slender greyish line at two-thirds.