Pycnarmon meritalis is a moth in the Crambidae family. It was described by Walker in 1859. It is found in Democratic Republic of Congo (Katanga, West Kasai), South Africa, Australia, China, Sri Lanka, India, Indonesia (Borneo, Java, Sulawesi, Sumatra), Taiwan and Japan. The wingspan is about 15 mm. Adults are white with several brown spots, mainly at the wing margins.