New record of the genus Stereodytis Meyrick, 1914 (Lepidoptera: Oecophoridae) from Japan with the description of a new species.

A new species Stereodytis eclipsia Tomura & Hirowatari sp. nov. from Japan is described. Images of the imagos, male and female genitalia, larval biology, feeding habits, and molecular data are provided. Additionally, its systematic position and the possibility that this species was invasive in recent years are discussed.

Two new species of Promalactis and one newly recorded from Japan (Lepidoptera, Oecophoridae).

Two new species of the genus Promalactis Meyrick (Lepidoptera: Oecophoridae) are described from Japan: P. inokoi Tomura Komatsu sp. nov. and P. kogii Tomura, Yagi Hirowatari sp. nov. Additionally, Promalactis hoenei Lvovsky, 2000, originally described from China is newly recorded from Japan. Images of the imagoes and male and female genitalia are provided.