Dichomeris leptosaris is a moth in the family Gelechiidae. It was described by Edward Meyrick in 1932. It is found on the Japanese islands of Hokkaido and Honshu.
The length of the forewings is . Adults are similar to Dichomeris acuminata, but the ground colour of the forewings is more reddish ochreous.Insecta Koreana 12: 33
The larvae feed on Corylus heterophylla var. thunbergi, Corylus sieboldiana and Quercus mongolia var. grosseserrata.
Lepidoptera and Some Other Life Forms gives this name as a synonym of Dichomeris consertellus (Christoph, 1882).
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