''Monochroa japonica'' is a
moth
Moths are a group of insects that includes all members of the order Lepidoptera that are not Butterfly, butterflies. They were previously classified as suborder Heterocera, but the group is Paraphyly, paraphyletic with respect to butterflies (s ...
of the family
Gelechiidae
The Gelechiidae are a family of moths commonly referred to as twirler moths or gelechiid moths. They are the namesake family of the huge and little-studied Taxonomic rank, superfamily Gelechioidea, and the family's taxonomy (biology), taxonomy ...
. It was described by Sakamaki in 1996. It is found in Japan (Hokkaido, Honshu,
Kyushu) and Korea.
Adults emerge in early summer.
The larvae feed within the stem of ''
Polygonum thunbergii''. Pupation takes place within the stem in late spring.
References
{{Monochroa-stub