Large Tree-chernes

The Large Tree-chernes (Dendrochernes cyrneus) is a distinctive pseudoscorpion endemic to Corsica, representing one of the Mediterranean's most remarkable arachnid species. This relatively large member of the Chernetidae family measures 3-4 millimeters in length, displaying the characteristic flattened body and prominent pedipalps that distinguish tree-chernes from their soil-dwelling relatives. The species exhibits a rich chestnut-brown coloration with darker chelae, perfectly adapted for camouflage against the bark of its preferred host trees.

Dendrochernes cyrneus inhabits the ancient oak and chestnut forests of Corsica's mountainous interior, typically found beneath loose bark and in natural tree crevices at elevations between 400-1,200 meters. The species demonstrates remarkable site fidelity, with individuals often remaining within the same tree system throughout their multi-year lifespan. As a specialized predator, it feeds primarily on bark-dwelling mites, springtails, and other minute arthropods, playing a crucial role in maintaining the ecological balance of Corsican forest ecosystems.

The International Union for Conservation of Nature classifies this species as Vulnerable due to its extremely restricted range and dependence on mature forest habitats. Despite conservation challenges, recent surveys have documented stable populations within Corsica's protected forest reserves, and the species shows encouraging adaptability to well-managed silvicultural practices that maintain adequate dead wood and bark microhabitats.

Dendrochernes cyrneus occupies the subcortical environment of mature deciduous trees, particularly oak and chestnut species, in Corsica's montane forests. The species requires trees with naturally loose or partially detached bark that creates the humid microhabitats essential for its survival and reproduction.