Aeromachus inachus is a butterfly in the family Hesperiidae (Hesperiinae) . It is found in the East Palearctic in Ussuri, Amur, Taiwan, Japan. The larva on feeds on Spodiopogon sibiricus and other Gramineae. There are two or more broods. The larva of this species hibernates.Taro Iwase, 1954 Synopsis of the known life-histories of Japanese butterflies The Lepidopterists' News 1954: 95-100 pdf
Subspecies Aeromachus inachus inachus Aeromachus inachus formosanus Matsumura, 1931 Aeromachus inachus jiujianganus Murayama
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