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).
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
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