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).

  • Plesiophthalmus nigrocyaneus Tenebrionidae
    Plesiophthalmus nigrocyaneus
    Plesiophthalmus nigrocyaneus Tenebrionidae
    Main Region: Hokkaido, Honshu, Shikoku and Kyushu.
    Found in woods from flatlands to forests and also in street trees in cities and in Mt. Takao, one of the insects often seen at mountain trails and around large trees.
    Have long legs and frequently walk on trees, hence the Japanese name Ki-mawari tree around.
    Body color is mostly black with copperish and indigo bluish shine on the back.
    Have many shallow groove-like depressions.
    Adults feed on woods, so often found around trunks of trees, fallen trees and dead woods.
    Larvae also feed on woods and grow inside of fallen trees and stubs.

    ●Length  about 16 to 20 mm
    ●Adults Flight Season  May to about August
  • Arthromacra decora Tenebrionidae
    Arthromacra decora
    Arthromacra decora Tenebrionidae
    Main Region: Honshu, Shikoku, Kyushu, Tsushima and Yaku Island.
    Found in grasslands, green spaces and woods where wild plants grow, from flatlands to low elevations.
    Have elongated tubular shaped body are metallic shine bright green from head, thorax to abdomen.
    Antennae and legs are light yellow-brown.
    Are widely known to insect-fans as metallic colored beautiful beetles like jewel beetles.
    Are seen from spring to early summer, often found on flowers of hydrangea luteovenosa and clethra barbinervis and feed on nectar of these flowers.

    ●Length  about 9 to 12 mm
    ●Adults Flight Season  April to about June
  • Acrothinium gaschkevitchii Chrysomelidae
    Acrothinium gaschkevitchii
    Acrothinium gaschkevitchii Chrysomelidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu and Okinawa.
    Found in woods and surrounding grasslands from flatlands to mountains and also in croplands.
    Body color varies among individuals of the same species.
    Most of them have red-copper on upper parts of fore wings and metallic green on the rest as the Japanese name Aka-gane-saru-hamushi literally meaning red copper monkey chrysomelidae states.
    Body color looks different by viewing angles and is very beautiful.
    Are seen from spring to summer and feed on leaves of plants in vitaceae family including Vitis ficifolia var. lobata, Corylopsis spicata Sieb. et Zucc., and mint and often found on these plants.
    Larvae feed on roots of plants that adults feed on.
    Both larvae and adults are known as pests for plants in vitaceae family.

    ●Length  about 5 to 7 mm
    ●Adults Flight Season  May to about August
  • Gallerucida bifasciata Chrysomelidae
    Gallerucida bifasciata
    Gallerucida bifasciata Chrysomelidae
    Main Region: Hokkaido, Honshu, Shikoku and Kyushu.
    Found in forest, grasslands, croplands and grassy areas on riverbeds from flatlands to mountains.
    Is a family of chrysomelidae with ladybug-like patterns.
    Body color is shiny black on head and thorax and black on fore wings with orange spots both on upper and bottom parts.
    This pattern varies among individuals of the same species, some are large and some have small patterns.
    Have distinct thick and long antennae.
    Species in chrysomelidae family eat leaves of plants but varies by different species.
    This species feeds on Japanese knotweed and are often seen on these leaves.
    Also feed on leaves of rumex japonicus and common sorrel.

    ●Length  about 7 to 9 mm
    ●Adults Flight Season  April to about September
  • Cassida vespertina Chrysomelidae
    Cassida vespertina
    Cassida vespertina Chrysomelidae
    Main Region: Honshu, Shikoku, Kyushu and Okinawa.
    Found in woods and green space from flatlands to mountains.
    Most species in cassidinae edges of thorax and fore wings arch out, creating pointed hat or helmet shape which can cover entire antennae and legs (There is a species called aspidomorpha indica boheman).
    When looking at this species from above, body shape is almost square with bumpy surface.
    Black patterns on fore wings are stretched to front edges to bottom edges, creating turtle-like shape.
    Both larvae and adults feed on leaves of clematis apiifolia.
    Female lay eggs and paste own dungs around eggs.
    Larvae grow with empty shell on its back.

    ●Length  about 4 to 7 mm
    ●Adults Flight Season  May to about September
  • Thlaspida cribrosa Chrysomelidae
    Thlaspida cribrosa
    Thlaspida cribrosa Chrysomelidae
    Main Region: Honshu, Shikoku, Kyushu, Okinawa, Tsushima and Yaku Island.
    Found in green space and grasslands from flatlands to mountains.
    Arched out areas are mostly transparent which looks like covered with plastic cover.
    Have paired black spots along edges of lower parts of fore wings and dark areas of abdomen, creating one thick belt-like patterns and remind people of the letter one in Chinese character.
    Are seen from spring and feed on leaves of Japanese beautyberry, callicarpa dichotoma and callicarpa japonica form.
    Albibacca and often found on the back of leaves of these plants.
    Larvae also feed on leaves of these plants.
    Larvae have habit of attaching dungs and empty shells at the tip of tails.

    ●Length  about 8 to 9 mm
    ●Adults Flight Season  April to about October
  • Leptura ochraceofasciata Cerambycidae
    Leptura ochraceofasciata
    Leptura ochraceofasciata Cerambycidae
    Main region: Hokkaido, Honshu, Shikoku, Kyushu, northern islands of Izu Islands, Rishiri Island, Sado Island, Oki Island and Goto Islands.
    Found in woods and grassland from flatlands to mountains.
    Japanese name Yotsusuji-hana-kamikiri literally meaning four lines flower cerambycidae was named because there is four yellow-brown to white four lines on hard outer wings.
    Have yellow-brown legs and skinny body that simulates the appearance of bees.
    Are seen from mid-June. Adults are a subfamily of lepturinae that feed on pollen and nectar of flowers, and fly to hydrangeas, hydrangea paniculata, Japanese chestnuts, clethra barbinervis and cornus controversa.
    The patterns on the body of some species resemble clytini tribe but this species is easily distinguished by skinny thorax.
    Larvae feed on trunk of needle leaf trees including yezo spruce and Japanese red pine.

    ●Length  about 12 to 20 mm.
    ●Adult Flight Season  June to about September
  • Aredolpona succedanea Cerambycidae
    Aredolpona succedanea
    Aredolpona succedanea Cerambycidae
    Main region: Hokkaido, Honshu, Shikoku, Kyushu, Okinawa and Rishiri Island.
    Found in forests from flatlands to mountains.
    Japanese name Akahana-kamikiri literally meaning red flower cerambycidae was named because most of body parts excluding head are red-brown.
    Are often seen in Mt. Takao and it is easy to find with its striking body color.
    The thorax of some species is black.
    Antennae are shorter than body with saw-toothed tips.
    Are seen from midsummer and fly to grasslands and woods and feed on pollen and nectar of flowers including angelica pubescens and hydrangea paniculata.
    Larvae feed on deadwoods, fallen trees and logged timbers yezo spruce and abies sachalinensis var. sachalinensis.

    ●Length  about 12 to 22 mm
    ●Adult Flight Season  July to about September
  • Aeolesthes chrysothrix Cerambycidae
    Aeolesthes chrysothrix
    Aeolesthes chrysothrix Cerambycidae
    Main region: Honshu, Shikoku, Kyushu, Sado Island, Oki Island, Tsushima and Yaku Island.
    Found in forests and woods from flatlands to mountains.
    The entire body is covered with yellow-gold short hairs that make its body colors and patterns look different by viewing angles like velvet.
    Have conical protrusions at the back of thorax.
    Are seen from May, nocturnal and often rest on trees or under fallen leaves during daytime.
    Become active after sunset and fly to quercus acutissima, quercus serrata and Japanese chestnuts for sap.
    Are often attracted to lights.
    Female lays eggs on decaying logs of Japanese chestnuts and quercus acutissima.
    Hatched larvae feed on these woods to grow.

    ●Length  about 22 to 35 mm
    ●Adult Flight Season  May to about August
  • Rosalia batesi (Blue Longhorn Beetle with Black Spots) Cerambycidae
    Rosalia batesi (Blue Longhorn Beetle with Black Spots)
    Rosalia batesi (Blue Longhorn Beetle with Black Spots) Cerambycidae
    Main region: Hokkaido, Honshu, Shikoku, and Kyushu.
    Found in forests and woods from flatlands to mountains.
    Japanese name Ruri-boshi-kamikiri literally meaning lazuline star cerambycidae was named because the body color is strong bluish light blue with three paired-black spots.
    This species is known as a beautiful cerambycidae.
    Some species have these black spots on left side and right part connected.
    Antennae are blue and segments with black hairs.
    Are seen from June and active during daytime.
    In Mt. Takao, are often seen at fallen trees of fagus japonica maxim.
    Also fly to quercus serrata for sap and flowers of clethra barbinervis.
    Larvae also feed on woods of trees in fagaceae family that adults also feed on.

    ●Length  about 18 to 30 mm
    ●Adult Flight Season  June to about September
  • Chloridolum viride Cerambycidae
    Chloridolum viride
    Chloridolum viride Cerambycidae
    Main Region: Hokkaido, Honshu, Shikoku, Rebun Island, Tsushima, Oki Island and Yaku Island.
    Found in forests and woods from flatlands to mountains.
    Body shape is slim and its color is metallic and shiny green as Japanese name Midori-kamakiri literally meaning green longicorn states but some parts looks reddish by viewing angles.
    Have small-paired protrusions on the sides of thorax. Have long legs that are longer than body length.
    Often found around sunny woods and feed on nectar of flowers of viburnum dilatatum, deutzia crenata and Japanese chestnuts.
    Larvae feed on woods of Japanese chestnuts, quercus acutissima and quercus serrata.
    Male guards female after mating and protects her from the copulation attempts by other male until she lays eggs.

    ●Length  about 15 to 21 mm
    ●Adults Flight Season  May to about August
  • Purpuricenus temminckii Cerambycidae
    Purpuricenus temminckii
    Purpuricenus temminckii Cerambycidae
    Main Region: Hokkaido, Honshu, Shikoku, Kyushu, Sado Island, Oki Island and Tsushima.
    Found in woods and green spaces from flatlands to low elevations.
    Color of thorax and fore wings is bright red as the Japanese name Beni-kamikiri literally meaning red longicorn with black spots states and thorax has black spots.
    Color of head and antennae is black.
    Antennae of male are longer than body length and those of female are about the same length with the body, making it easy to distinguish male and female.
    Similar purpuricenus spectabilis can be identified with their paired black spots on the lower parts of fore wings.
    Are seen from early spring and feed on nectar of welsh onion, Japanese chestnuts and toxicodendron succedaneum.
    Larvae feed on dead bamboo including moso bamboo and Japanese timber bamboo.
    Emerged adults are sometimes found in bamboo hedge.

    ●Length  about 13 to 17 mm
    ●Adults Flight Season  April to about August
  • Anaglyptus bellus Cerambycidae
    Anaglyptus bellus
    Anaglyptus bellus Cerambycidae
    Main Region: Honshu, Shikoku and Kyushu.
    Found in forests and green space from flatlands to mountains.
    Is a clytrini tribe and have red stripe patterns as the Japanese name Aka-suji-torakamikiri literally meaning red stripes clytrini states.
    This red color varies among individuals of the same species from bright red, orangey to pinkish red.
    Body length is less than 2 cm and small but antennae and legs are thick, making it look masculine.
    Have similar patterns in clytrini tribe but this species can be easily identified with these body features. Adults feed on timbers of Japanese zelkova and tree barks of large trees and nector of Japanese knotweed, celtis jessoensis and date plum.
    Larvae feed on woods of celtis sinensis, celtis jessoensis and date plum.

    ●Length  about 13 to 17 mm
    ●Adults Flight Season  August to about October
  • Paraclytus excultus Cerambycidae
    Paraclytus excultus
    Paraclytus excultus Cerambycidae
    Main region: Hokkaido, Honshu, Shikoku, Kyushu, Rishiri Island, Sado Island, Oki Island and Tsushima.
    Found in forests and grasslands from flatlands to mountains.
    Japanese name Shiro-tora-kamikiri literally meaning white tiger cerambycidae was named because of the base body color is nearly white.
    There are other species in clytini tribe with similar body color but this species is distinguished by not having black patterns on the center of the back.
    Are small species about a bit longer than 1 cm and seen from early May.
    Fly in rich grasslands during daytime and feed on pollen and nectar of Japanese chestnuts, plants in aceraceae family and Hydrangea paniculata.
    Female adults lay eggs in deadwoods and logged timbers of Japanese beech, quercus myrsinifolia and Japanese zelkova and larvae grow within and feed on these deadwoods.

    ●Length  about 10 to 16 mm
    ●Adult Flight Season  May to about August
  • Anoplophora malasiaca (White-spotted Longicorn Beetle) Cerambycidae
    Anoplophora malasiaca (White-spotted Longicorn Beetle)
    Anoplophora malasiaca (White-spotted Longicorn Beetle) Cerambycidae
    Main region: Hokkaido, Honshu, Shikoku, Kyushu, Okinawa, Sado Island, Oki Island, Tsushima, Tanega Island and Yaku Island.
    Found in woods from flatlands to mountains.
    Are most well-known species in cerambycidae family as both adults and larvae feed on various kinds of plants in salicaceae family, castanopsis genus, rutaceae family and aceraceae family that could be found in farmlands.
    In Mt. Takao, are often found in mountain trails.
    Shiny black body has some white spots.
    Antennae are light blue and black stripe patterns and their length are double the size of body length for male and 1.2 times longer for female adults.
    Sometimes cause serious damage to trees at gardens and streets.

    ●Length  about 25 to 35 mm
    ●Adult Flight Season  June to about August
※Quotation from Mount Takao formula application
もっと見る 閉じる