Wood, 1982: As in the species spathipennis, this species occurs in wet lowland forests in almost any souring log that is in contact with the soil. The elongate gallery system branches and rebranches and anastomoses with other systems. Few other Scolytidae tolerate the wet souring conditions where this species breeds. It is much less common than spathipennis. Wood, 2007, general comment on Xyleborus spp.: Felled, broken, damaged, and unthrifty stems ranging in diameter from about 3 cm to more than 3 m are selected for attack. In broken or felled stems the attack may be massive and encompass most or all of the sapwood within a few days. The galleries are usually of a simple branching type that may join other similar galleries of the same species. Eggs are usually placed in clusters at or near the end of branch tunnels. The larvae feed on the mycelium of ambrosial fungi, then pupate in these galleries. The brood emerges from the parent entrance tunnels.