Prionus Coriarius - Tanner Beetle - The Sawyer

Nature - Wild Life - Insect Life . Prionus Coriarius is a species of longhorn beetle from family Cerambycidae, genus Prionus. Can reach a length of 18-45 millimetres. It is one of the most massive of European beetles. The female is larger than the male. Body is shiny, dark brown to black. The neck shield bears on each side three clearly distinct teeth. The serrated antennae of the male are composed of 12 segments. The ventral surface of the female is hairless, while in the male is pubescent.
The larvae are polyphagous, but they mainly develop in rotten wood of deciduous and coniferous trees. They can reach a length of about 60 millimetres. The life cycle lasts at least 3 years. Adults can be found from July to September. Its activity is mainly crepuscular and nocturnal.
This species is common in most of Europe and it is present in North Africa , Turkey, Caucasus, Transcaucasia, Iran.
Although is not generally a pest of healthy trees, it is often misidentified as potentially harmful species such as Cerambyx Scopolii, Cerambyx Cerdo, Rhagium Spp., Aegosoma Scabricorne, or some Monochamus species, which can pose a threat to tree health.