@Forest2Furnitur The central passage is bored by the female beetle and eggs laid either side of it.The larvae radiate outwards from the main passage. Some species can be identified from these passages
A Tolkien connection amongst the trees.
The Groot Tree in Brocton Coppice,Cannock Chase said to be the inspiration of Treebeard in Lord of the Rings.Tolkien was in the area during the World War 1 & the Yew Trees of St. Edward’s in Stow, a looser link-not verified he visited.