''Hirayamaia'' is a monotypic snout moth genus described by Nobukatsu Marumo in 1917. Its only species, ''Hirayamaia regalis'', was described by John Henry Leech in 1889. It is found in Korea,

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

and

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

. The wingspan is 28–30 mm.Japanese Moths
/ref> Adults are on wing from June to September.

References

Pyralinae Monotypic moth genera Moths of Asia Pyralidae genera {{Pyralinae-stub