Velvety Tree Ant

Identification

• brownish black head; yellowish red thorax; velvety black abdomen
• single node
• abdomen covered in very fine hairs
• workers of many sizes
• appear similar to carpenter ant
• evenly rounded thorax

Nesting Habits

• usually associated with hollows of trees, stumps and logs 
• build temporary nests indoors for foraging
• nest in wall voids and areas with high moisture such as water leaks
• under loose bark and rocks 
• in/under insulation

Diet

• other insects
• honeydew produced by aphids, mealybugs or scales
• scavenge on dead animals
• partial to sweets

Significance

• aggressive; inflict a painful bite and spray secretions onto intruders when disturbed
• damage insulation and wood by tunneling 
• workers/foragers may enter structures
• structural infestations result in a foul-smelling odor

IPM Recommendations

• Trim back tree branches and shrubs that come into contact with the building.
• Seal all exterior cracks and holes to prevent workers from entering. 
• Repair water leaks and maintain proper ventilation of the surrounding area.
• Replace severely damaged wood.
• Ant baits may be necessary. 

Additional Resources:

IPM for Ants: Integrated Pest Management in Sensitive Environments (University of Nebraska-Lincoln Extension)