Omiodes diemenalis, the bean leafroller, is a moth in the family Crambidae. It was described by Achille Guenée in 1854. It is found in Indonesia (Sumatra, Ambon Island), Sri Lanka, India,[1] the Cook Islands, China, Thailand, Papua New Guinea[2] and Australia, where it has been recorded from the Northern Territory, Queensland and Tasmania.
The wingspan is about 20 mm. Adults are yellow with brown broad wavy bands and spots.