japonicum (Tokunaga, 1938): The Philippine Journal of Science, 65: 332 ( Chironomus ( Polypedilum)).

Type locality. Japan, Shimogamo, Kyoto Prefecture.

Distribution. PA: Japan (Hokkaido, Honshu, Shikoku, Kyushu), Russian Far East, Korea, China (Beijing); OR: (Fujian, Guangdong, Hainan, Guizhou).