• Can be all black, all red, red and black, or brown
  • 1/8 inch to 1/2 inch at their largest


  • Mature colonies can contain anywhere from 1000 to 15,000 workers
  • Complete lifecycle spans about 60 days
  • Swarmers (winged adults) do not appear in the colony for 4 to 10 years


  • Exhibit social behaviour
  • Commonly excavate and nest in wood and insulation
  • Feed on sugar solutions like fruit juice, or the honeydew secretion of aphids
  • Actively feed after sunset and through the night