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Dorcus parallelipipedus

Dorcus parallelipipedus

Description

The lesser stag beetle Dorcus parallelipipedus is a saproxylic beetle species closely associated with dead and decaying wood. It is not a primary pest of trees, but it is frequently encountered in forests and parks, where it is often mistakenly considered harmful. Larvae develop in strongly decomposed wood of broadleaved trees, mainly oak (Quercus spp.), beech (Fagus sylvatica), hornbeam (Carpinus betulus) and other hardwoods. Development lasts several years. Adults feed just little and usually remain hidden under bark or in wood cavities. Its presence is linked to dying or dead trees and stumps, where it contributes to wood decomposition. In managed stands it may be associated with old trees and coarse woody debris. The species is widespread across Europe, mainly in lowlands and hilly regions.

Symptom

Presence of larvae in decayed wood, irregular galleries inside rotten trunks or stumps, and adult beetles found under bark or in wood cavities.

Part of a plant- attacked: Tree trunk

Pest significance: Not harmful

Pest Category: Fungi

Invasive Species: No

Present in EU: Yes