Treasures of Mt. Takao

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).

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
※Quotation from Mount Takao formula application
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