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).

Sympetrum frequens
Sympetrum frequens Libellulidae
Main region: Hokkaido, Honshu, Shikoku and Kyushu.
Is most frequently seen dragonflies and also named as Aka-Tombo literally meaning red dragonfly and has long been used in poetries but head and thorax of this species do not turn red.
The abdomen of male adults turns from orange to deep red with age.
After adult emergence in paddy fields or swamps on hills around June, move to higher mountains to avoid hot summer weather.
As they grow, around September, they move back to flatland or low mountains.
They have reduced in numbers compare to the past, but still found in grassland or idle land apart from the city.
Similar species, sympetrum darwinianum, whole body turns red and found in flatland even in summer.
Main foods are small incects including flies and mosquitos.

●Length  about 35 to 45 mm
●Adults Flight Season  June to about October
※Quotation from Mount Takao formula application
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