widespread throughout temperate and tropical regions of the world
The gallery system usually consists of irregularly branched tunnels, usually in one horizontal plane, but sometimes spreading into three dimensions, and without brood chambers. However, given the heterogeneity of the genus, it is not surprising that there are variations on this pattern. In some species, small brood chambers may be present.
Xyleborus is the largest genus and is in need of revision. Most Xyleborini species were originally described in Xyleborus, and revision of Xyleborus is ongoing on a regional basis.