Bark and Ambrosia Beetles of the World

This species is very similar to specimens from eastern North America identified as X. intrusus Blandford, differing in minute differences in the denticles of the elytral declivity. Xyleborus intrusus is found from British Columbia to Gautemala, but is isolated from eastern populations of the ‘same species’ by a large area in central Canada and the Lake states of the U.S. Bright (2019:298) formally proposed the synonymy but this may be premature. In the meantime I believe that all records and names from eastern North America should be treated as pubescens. Pérez Silva et al. (2021) cited X. pubescens from the Mexican state of Chiapas, further complicating matters. This group of species needs revision.