''Chrysocercops castanopsidis'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of ...

of the family

Gracillariidae Gracillariidae is an important family of insects in the order Lepidoptera and the principal family of leaf miners that includes several economic, horticultural or recently invasive pest species such as the horse-chestnut leaf miner, ''Camerar ...

. It is known from Japan (Honshū, Iriomote, Isigaki, Okinawa and Shikoku).Global Taxonomic Database of Gracillariidae (Lepidoptera)
/ref> The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan ...

is about 6.2–8 mm. The

larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. Th ...

e feed on ''

Castanopsis cuspidata ''Castanopsis cuspidata'' (Japanese chinquapin; Japanese tsuburajii, 円椎) is a species of ''Castanopsis'' native to southern Japan and southern Korea. It is a medium-sized evergreen tree growing to 20–30 m tall, related to beech and oak ...

'', ''

Castanopsis sieboldii ''Castanopsis sieboldii'', also known as the Itajii chinkapin or Itajii, is a species of evergreen tree that lives in subtropical eastern Asia. This is a climax species that is commonly found in the Japanese temperate rainforest. Specimens are al ...

'', ''

Lithocarpus glaber ''Lithocarpus glaber'', the Japanese oak, is a tree species in the genus ''Lithocarpus'' found in Japan, China and Taiwan. Mitami Shrine, a Shinto shrine in Sakai, Osaka Prefecture, Japan, is famous locally for its comparatively large population ...

'' and ''

Pasania glabra ''Lithocarpus glaber'', the Japanese oak, is a tree species in the genus ''Lithocarpus'' found in Japan, China and Taiwan. Mitami Shrine, a Shinto shrine in Sakai, Osaka Prefecture, Japan, is famous locally for its comparatively large population ...

''. They probably

mine Mine, mines, miners or mining may refer to: Extraction or digging * Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun ...

the leaves of their host plant.

References

Chrysocercops Moths of Japan Moths described in 1988 {{Acrocercopinae-stub