Acleris nigriradix explained

Acleris nigriradix is a species of moth of the family Tortricidae. It is found in China,^[1] Korea, Japan and the Russian Far East (eastern Siberia).

The wingspan is 20 mm for males and 19 mm for females.^[2]

Notes and References

1. https://www.researchgate.net/publication/260602677_Check_List_of_the_Tribe_Tortricini_%28Lepidoptera_Tortricidae%29_in_Northeast_china_with_Two_Newly_Recorded_Species_from_China Check List of the Tribe Tortricini (Lepidoptera: Tortricidae) in Northeast china, with Two Newly Recorded Species from China
2. http://www.tortricidae.com/library/TORTS0724.pdf Seven species of Tortricinae (Lepidoptera; Tortricidae) new to Korea