Found primarily in Utah’s canyons and older neighborhoods with mature trees, the Velvety Tree Ant (Liometopum occidentale) is a pest that bridges the gap between the forest and the home.
Nesting HabitsAs their name suggests, they nest in the cavities of trees, particularly in oaks and pines. However, they will happily move into the structural wood of a home if it is damp or has previous termite damage.
Aggressive NatureThese are among the most "aggressive" ants in Utah. If you disturb a tree they are nesting in, they will swarm out and bite humans and pets relentlessly.
TrailsThey form very long, distinct foraging trails that often lead from a tree, across a fence line, and directly into the eaves of a house.
Do they eat wood like termites?No, like Carpenter ants, they excavate wood to live in it. They are "wood-destroying" insects because their tunneling can weaken tree limbs or house beams.
How do I know if they are in my tree?Look for "frass" (sawdust-like debris) at the base of the tree or tucked into the crevices of the bark.
