Herpetogramma moderatalis is a species of moth in the family Crambidae. It was described by Hugo Theodor Christoph in 1881. It is found in Japan, Korea, the Russian Far East (Amur, Ussuri) and China.
The wingspan is 31âÂÂ35 mm.
The larvae have been recorded feeding on Petasites japonica, living in a rolled leaf of their host plant.