It is the Asian long-horned beetle (Anoplophora glabripennis) , a not harmful insect to human beings (it does not bit, it is neither irritating nor poisoning), but it can seriously damage trees.
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In August 2013 an outbreak of the Asian long-horned beetle, Anoplophora glabripennis (Motschulsky), was found in the Marche region in the province of Fermo. The infested trees and the close host plants are cut and chipped and more plants will be processed in the same manner if attacked by the insect.