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).

Nephargynnis anadyomene ( Anadyomene Fritillary)
Nephargynnis anadyomene ( Anadyomene Fritillary) Nymphalidae
Main Region: Hokkaido, Honshu, Shikoku, Kyushu and Sado Island.
Found in forests, mountain trails and valleys from low elevations to mountains.
Wing color is orange but female is darker with white spots at edges.
Also many black spots create leopard-like pattern, hence the Japanese name Kumogata-hyo-mon literally meaning cloud leopard-like patterns.
The back of wings is grayish yellow-green with lightly white shaded in some parts.
Japanese name come from these white patterns resembling clouds.
These white patterns are unique to this species so it is easy to distinguish them from other butterflies in argynnini tribe.
Have different biological cycle than other butterflies, adults emerge around May, go dormant in summer and become active in autumn.
Adults feed on nectar of plants in cirsium family.
Caterpillar feed on leaves of viola.

●Wingspan  about 65 to 75 mm
●Adult Flight Season  May to about October
※Quotation from Mount Takao formula application
もっと見る 閉じる