''Lethe callipteris'' is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

in the family Nymphalidae (

Satyrinae The Satyrinae, the satyrines or satyrids, commonly known as the browns, are a subfamily of the Nymphalidae (brush-footed butterflies). They were formerly considered a distinct family, Satyridae. This group contains nearly half of the known divers ...

). It is found in the East

Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

where it is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

Sakhalin Sakhalin ( rus, Сахали́н, r=Sakhalín, p=səxɐˈlʲin; ja, 樺太 ''Karafuto''; zh, c=, p=Kùyèdǎo, s=库页岛, t=庫頁島; Manchu: ᠰᠠᡥᠠᠯᡳᠶᠠᠨ, ''Sahaliyan''; Orok: Бугата на̄, ''Bugata nā''; Nivkh: ...

(''L. c. karafutonis'' Matsumura, 1925) and the

Kuriles The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

(''L. c. obscura'' Nakahara, 1926). The larva feeds on ''

Sasa Sasa may refer to: People * Saša, a given name * Genjū Sasa (1900–1959), Japanese film director and critic * Sa'sa'a bin Sohan (598–666), a companion of Imam Ali revered by Shia Muslims * Sasa (politician), special envoy to the United Nation ...

'' and '' Pleioblastus'', etc. (Graminae). It has single generation and hibernates as a larva.Taro Iwase, 1954 Synopsis of the known life-histories of Japanese butterflies ''The Lepidopterists' News'' 1954: 95-10
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Subspecies

*''Lethe callipteris callipteris'' (Japan) *''Lethe callipteris karafutonis'' Matsumura, 1925 (Sakhalin) *''Lethe callipteris obscura'' Nakahara, 1926 (Kuriles)

References

callipteris Butterflies described in 1877 Butterflies of Japan Taxa named by Arthur Gardiner Butler {{Elymniini-stub