Treasures of Mt. Takao

Mt. Takao has abundant nature with warm-temperature forests and temperate forests. There are a lot more species could be called as "treasure" inhabits other than explained in animals, insects and birds section. Spiders is one of them because they are beneficial insects and its prey is destructive insects. Over 300 species including rare ones inhabits and Mt. Takao is the mountain with the largest number of species of spiders and widely known as a paradise for spiders.

Gagrellula ferruginea
Gagrellula ferruginea Sclerosomatidae
Main Region: Honshu, Shikoku, Kyushu and Yaku Island. Found in forests from low elevations to mountains. Body color varies by region. The ones in Kanto region including Mt. Takao area are so-called Kanto-type are red rust and black on the back with one long needle-like black spine. Adults are seen from July, and often found walking on trees and grass in mid-summer. Another species of opiliones order in Mt. Takao, melanopa grandis roewer also have one spine on the back but the body size is 7 to 10 mm with skinny body with black and legs are thicker and short which is different from this species. For both species, larvae do not have the spine on the back.

●Length  about 4 to 6 mm
●Adults Flight Season  July to about October
※Quotation from Mount Takao formula application
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