Hypsopygia pelasgalis is a species of snout moth in the genus Hypsopygia. It was described by Francis Walker in 1859, and is known from Korea, Japan, ChinaA review of the tribe Pyralini Latreille (Lepidoptera, Pyralidae, Pyralinae) from Korea and Taiwan.
The wingspan is 25–33 mm.Oriental Butterflies and Moths The colour of the wings varies from reddish brown to dark blackish brown. Adults are on wing from July to August.
The larvae feed on Quercus acutissima.
References