TAKAO 599 MUSEUM

Treasures of Mt. Takao

Insects

Mt. Takao is considered one of the three major habitat of insects along with Minoo (Osaka prefecture) and Kibune (Kyoto prefecture) and it has long been loved by researchers of insects because of number of species and the easy access from the Metropolitan area. There are many insects first found in Mt. Takao and named after "Takao" such as Takao Shachihoko (Hiradonta takaonis Matsumura) and Takao medaka kamikiri (Stenhomalus takaosanus).

  • Libythea lepita (Nettle-tree Butterfly) Nymphalidae
    Libythea lepita (Nettle-tree Butterfly)
    Libythea lepita (Nettle-tree Butterfly) Nymphalidae
    Main Region: Some parts of Hokkaido, Honshu, Shikoku, Kyushu and Nansei Islands.
    Found in woods with Chinese hackberry that caterpillar feed on, rivers and valleys in forests from flatlands to mountains.
    The protrusion at the tip of head resemble the nose of long nosed goblin, hence the Japanese name Tengu-cho literally meaning long nosed goblin butterfly.
    Shapes of wings are unique with the extended tips of fore wings.
    Wing colors on the front is black-brown with irregularly placed orange spots.
    The back of wings is brown but more reddish for female.
    The entire wing colors is like dead leaves, thus it is hard to recognize when resting on branch with wings closed.
    Feed on nectar and sap of various flowers and trees.
    Fly to these flowers and trees during daytime.

    ●Wingspan  40 to 50 mm
    ●Adult Flight Season  March to November
  • Parantica sita (Chestnut Tiger) Nymphalidae
    Parantica sita (Chestnut Tiger)
    Parantica sita (Chestnut Tiger) Nymphalidae
    Main Region: Honshu, Shikoku, Kyushu and Nansei Islands.
    Found in forests and grasslands from flatlands to mountains.
    Fore wings is black and hind wings is red-brown, and both with light blue patterns.
    Japanese name Asagi-cho literally meaning light blue-green butterfly came from this light blue-green that is used to be called as Asagi color.
    Caterpillars feed on toxic plants like marsdenia tomentosa to intake the toxicity.
    Adults are also toxic and not attacked by enemies.
    Fly elegantly during daytime to plants in cirsium family and boneset for nectar.
    It is confirmed that they also fly long distance for hundreds of kilometers.
    In summer, fly north to lay eggs in forests in mountains.
    And in autumn, emerged adults come down to south.

    ●Wingspan  about 100 mm
    ●Adult Flight Season  Apil to about October
  • Lethe sicelis Nymphalidae
    Lethe sicelis
    Lethe sicelis Nymphalidae
    Main Region: Honshu, Shikoku and some parts of Kyushu.
    Found in bushes and woods from flatlands to low elevations.
    Similar to the Diana treebrown but this species have slightly light brown colored wings.
    Fore wings are with white belt-like pattern.
    Have even lighter brown color on the back.
    Have eyespots (eyelike markings) like lethe diana, one or two small ones on the front and six various sized ones on the back.
    These eyespots are unique to satyrinae family.
    Having light base color makes these patterns appear more distinct.
    Fly around forests during daytime but become even more active in late afternoon to sunset.
    Feed on tree sap of quercus acutissima and quercus serrata.
    Caterpillars feed on leaves of Japanese timber bamboo and arundinaria ramosa.

    ●Wingspan  about 50 to 60 mm
    ●Adult Flight Season  May to about September
  • Lethe diana(Diana Treebrown) Nymphalidae
    Lethe diana(Diana Treebrown)
    Lethe diana(Diana Treebrown) Nymphalidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu and islands including Tsushima.
    Found in shady woods from flatlands to mountains.
    Is often found on mountain trails in Mt. Takao.
    Fore wings are black-brown, shaded from light to dark and some have white belt-like patterns.
    These patterns are more distinct on female.
    Hind wings are black-brown with eyespots on the back.
    Have one or two small eyespots on fore wings and six various sized ones on hind wings.
    Feed on tree sap of quercus acutissima and quercus serrata and fly during daytime.
    Caterpillars feed on leaves of plants in Bambusoideae family including sasa veitchii and pleioblastus chino var. viridis.

    Wingspan  about 45 to 55 mm
    Adult Flight Season  May to about September
  • Neope goschkevitschii (Goschkevitschi’s Labyrinth) Nymphalidae
    Neope goschkevitschii (Goschkevitschi’s Labyrinth)
    Neope goschkevitschii (Goschkevitschi’s Labyrinth) Nymphalidae
    Main Region: Hokkaido, Honshu, Shikoku and Kyushu.
    Found in woods from flatlands to low elevations and also at parks and residential areas in cities.
    Wing color on the front is brown with yellow lines along wing veins and yellow round-shaped patterns outside of these lines.
    The back of wings is yellow-white to yellow-brown with brown wavy patterns and various sized eyespots.
    Prefer shady areas than open bright spaces.
    Fly in woods and bamboo bushes.
    Become more active after sunset than daytime and fly to quercus acutissima and quercus serrata for sap.
    Also feed on dungs of animals and fruits, not nectar.
    Caterpillars feed on leaves of sasa veitchii and Japanese timber bamboo.

    ●Wingspan  about 55 to 63 mm
    ●Adult Flight Season  May to about August
  • Mycalesis francisca (The Lillacine Bushbrown) Nymphalidae
    Mycalesis francisca (The Lillacine Bushbrown)
    Mycalesis francisca (The Lillacine Bushbrown) Nymphalidae
    Main Region: Honshu, Shikoku and Kyushu.
    Found in shady forests and bushes from flatlands to low elevations.
    Wing color on the front is black-brown to light gray-brown and on the back is lighter color on edges outside of purplish belt-like patterns.
    Eyespots on the front are two to three on fore wings and some have them on hind wings, and on the back are three on fore wings and six to seven on hind wings.
    Are active during daytime and fly around trees, plants and flowers.
    Feed on sap of quercus acutissima and quercus serrata and also dungs of animals and hardly on nectar of flowers.
    Caterpillars feed on leaves of plants in poaceae family including oplismenus undulatifolius, Microstegium vimineum (Trin.) and miscanthus sinensis.

    ●Wingspan  about 40 to 50 mm
    ●Adult Flight Season  April to about October
  • Ypthima argus Nymphalidae
    Ypthima argus
    Ypthima argus Nymphalidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu, Yaku Island and Tanega Island.
    Found in various kinds of places including woods, and surrounding farmlands, rivers, swamps and bushes from flatlands to low elevations.
    Have large eyespots, one on fore wings and two on hind wings.
    Similar species, the Japanese rings only have one eyespot on each hind wings, thus it is easy to distinguish them from this species.
    Both species have fine ripples-like patterns with eyespots.
    Active during daytime, rest on leaves in bushes and fly around.
    Adults feed on nectar of flowers including ixeris dentata and creeping woodsorrel.
    Caterpillars feed on leaves of plants in poaceae family including oplismenus undulatifolius and miscanthus sinensis.

    ●Wingspan  about 33 to 40 mm
    ●Adult Flight Season  April to about September
  • Zizeeria maha (Pale Grass Blue) Lycaenidae
    Zizeeria maha (Pale Grass Blue)
    Zizeeria maha (Pale Grass Blue) Lycaenidae
    Main Region: Honshu, Shikoku, Kyushu and Nansei Islands.
    Found in grasslands and rivers from flatlands to low elevations.
    Also found in cities where creeping woodsorrel grow where caterpillars feed on.
    Wing color on the front is blue to purple-blue with black edges and on the back is light brown color with shaded patterns with many black spots.
    Are active during daytime and feed on nectar of creeping woodsorrel and white clover.

    ●Wingspan  about 25 to 30 mm
    ●Adult Flight Season  March to about November
  • Celastrina argiolus (Holly Blue) Lycaenidae
    Celastrina argiolus (Holly Blue)
    Celastrina argiolus (Holly Blue) Lycaenidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu, Tanega Island, Yaku Island and Amami Island.
    Found in woods, green spaces and rivers from flatlands to mountains.
    Adult flight season is long from early spring to late autumn and often seen at parks and farmlands in cities.
    Wing color of male is light purple-blue to blue, lazuline color, hence the Japanese name Ruri-Shijimi literally meaning lazuline lycaenidae.
    Female has less blue parts with wider black edges on the front.
    And on the back, both male and female is light gray colored with black spots.
    Adults are active in woods and grasslands during daytime and feed on nectar of Japanese wisteria and Japanese clover.
    Caterpillars feed on flowers and flower buds of plants in fabaceae, cornaceae, Fagaceae and Rutaceae family.

    ●Wingspan  about 22 to 25 mm
    ●Adult Flight Season  March to about November
  • Lampides boeticus (Long-tailed Blue) Lycaenidae
    Lampides boeticus (Long-tailed Blue)
    Lampides boeticus (Long-tailed Blue) Lycaenidae
    Main Region: South part of Hokkaido, Honshu, Shikoku, Kyushu and Nansei Islands.
    Found in green spaces or farmlands from flatlands to low elevations.
    Japanese name Uranami-shijimi literally meaning wavy pattern on the back lycaenidae, come from the white wavy patterns on the back of wings.
    Wing color on the front is shiny light purple with darker edges on male, and darker tone with shiny blue-purple in the center on female.
    Have black spots on the lower parts of hind wings.
    Is active during daytime and feed on nectar of plants in fabaceae family including peas, fava beans and common bean.
    Caterpillars feed on flowers and young fruits in fabaceae family including fava beans and Japanese clovers.

    ●Wingspan  about 28 to 34 mm
    ●Adult Flight Season  July to about November
  • Rapala arata (The Japanese Flash) Lycaenidae
    Rapala arata (The Japanese Flash)
    Rapala arata (The Japanese Flash) Lycaenidae
    Main Region: Hokkaido, Honshu, Shikoku and Kyushu.
    Found in woods and forests along rivers from flatlands to mountain, and also at parks in cities.
    Wing color on the front is dusty dark blue and on the back is white and brown stripe-like pattern, hence the Japanese name Torafu-shijimi literally meaning tiger patterns lycaenidae.
    Adults emerged in spring have more distinct white stripe-like patterns compare to the ones in summer with more brownish white and white part is less appealing.
    Some parts on the back of hind wings are orange and tails on the bottom is long.
    Fly fast but does not go long distance and frequently rest on leaves of trees.
    Is active during daytime and feed on nectar of Japanese chestnuts.
    Caterpillars feed on flowers and sprout of Japanese wisteria and vicia cracca.

    ●Wingspan  about 32 to 36 mm
    ●Adult Flight Season  April to about July
  • Curetis acuta (Angeled Sunbeam) Lycaenidae
    Curetis acuta (Angeled Sunbeam)
    Curetis acuta (Angeled Sunbeam) Lycaenidae
    Main Region: Honshu (South of southern Tohoku region), Shikoku, Kyushu and Nansei Islands.
    Found in woods and green spaces from flatlands to low elevations.
    Wing color is dark brown both for male and female.
    Male have orange center and female have white to gray spots.
    The back of wings are silver-white, hence the Japanese name Uragin-shijimi silver on the back lycaenidae.
    This species have angulated tips of fore wings that is unique to this species.
    Adults emerged in autumn have sharper tips than ones in spring.
    Fly in forests and over grasslands and feed on nectar and sap.
    Found even in paved roads in Mt. Takao.
    Caterpillars feed on flowers and flower buds of plants including Japanese wisteria and kudzu.

    ●Wingspan  about 36 to 40 mm
    ●Adult Flight Season  March to about November
  • Narathura japonica (Japanese Oakblue) Lycaenidae
    Narathura japonica (Japanese Oakblue)
    Narathura japonica (Japanese Oakblue) Lycaenidae
    Main Region: Honshu (South of Miyagi), Shikoku, Kyushu and Nansei Islands.
    Found in forests and grasslands from flatlands to mountains.
    Also found at parks in cities.
    Wing color on the front is blue-purple to purple-indigo blue with thick black edges.
    On the back is gray-white to dark brown with shaded spots or belt-like patterns.
    Also have pointed tips on fore wings.
    Is not that active during daytime and become active from late afternoon.
    Fly around trees and branches and feed on nectar and sap.
    Both male and female suck water.
    Adults spend throughout winter at the back of leaves of trees.
    Caterpillars feed on plants in fagaceae family including castanopsis and cyclobalanopsis genus.

    ●Wingspan  about 32 to 37 mm
    ●Adult Flight Season  March to about November
  • Everes argiades (Short-tailed Blue) Lycaenidae
    Everes argiades (Short-tailed Blue)
    Everes argiades (Short-tailed Blue) Lycaenidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu and Tanega Island and Yaku Island.
    Found in sunny grasslands and woods from flatlands to low elevations.
    Wing color on male is blue-purple with darker colored edges.
    Female is mostly black-brown but some are blue colored.
    The back of wings is light gray with some black spots and orange patterns on the bottom of hind wings.
    Have elongated tails on the bottom of hind wings resembling tails of barn swallows, hence the Japanese name Tsubame-shijimi literally meaning barn swallows lycaenidae.
    However, most of butterflies in lycaenidae have similar tails like this species.
    Is active during daytime in grasslands and forests and feed on nectar from Japanese clover.
    Caterpillars feed on flowers and sprouts in fabaceae family including white clover and indigofera pseudotinctoria.

    ●Wingspan  about 35 to 40 mm
    ●Adult Flight Season  March to about October
  • Callophrys ferrea (Tailless Hairstreak) Lycaenidae
    Callophrys ferrea (Tailless Hairstreak)
    Callophrys ferrea (Tailless Hairstreak) Lycaenidae
    Main Region: Hokkaido, Honshu, Shikoku and Kyushu.
    Found in woods on hills and open spaces in mountains and appear as spring comes.
    Wing color on female is light metallic blue and male is black-brown with blue in the center.
    The back of wings is dark brown with white wave-like patterns and gray small spots on hind wings.
    The entire body is covered with hair.
    Fly fast and is active from the morning.
    Feed on flowers of azalea and pieris japonica subsp. japonica.
    Caterpillars feed on flowers and leaves of plants in ericaceae family.

    ●Wingspan  about 25 to 29 mm
    ●Adult Flight Season  April to about May
※Quotation from Mount Takao formula application
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