Linden borer
Saperda vestita

• Round exit holes ¼ inch wide in trunk
• Thinning of the canopy
• Lower branches, lower trunk and surface roots are attacked resulting in limbs in canopy dying; eventually the entire tree is killed after high infestation
• Adults up to ¾ to 7/8 inch long, longhorns, black body covered by dense olive-yellow hairs; larvae are legless, cylindrical and 7/8 to 1 inch long
• Littleleaf lindens are preferred hosts
• More information on Linden borer