Scolytus rugulosus
Pest description and damage The adult shothole borer is a brownish-black beetle about 0.08 inch long. The larvae are white, legless, and about 0.16 inch long. When the numerous beetles emerge, the bark looks like it had been hit by buckshot. These beetles are primarily a problem on injured or stressed plants, but healthy trees growing adjacent to blocks of neglected trees also may be attacked.
For biology, life history, monitoring and management
See "Bark beetle" in:
For more information
Doerr, M. and P. VanBuskirk. 1993. Shothole Borers. WSU Orchard Pest Management Online (http://jenny.tfrec.wsu.edu/opm/displaySpecies.php?pn=530)