ENS des chataigneraies de la Naillerie et des Guillaumeries

During the construction of the motorway, a species of beetle protected at European level, the Pique-prune (Osmoderma eremita), was discovered within the territories crossed. This species, which has the same level of protection as the Pyrenean bear, is a bio-indicator of a bocage made up of old trees. This type of environment is endangered at European level. The Conseil Départemental, through its policy of preserving the bocage in this area - in particular the pollarded trees and fruiting chestnut groves - is helping to maintain and develop this species. It owns around 3 hectares of the site, including 85 old nouzillards.