- 1 inch to 1 ½ inches in length
- Long antennae banded with black and white
(longer than the insect’s body)
- Shiny, jet black body with distinctive white spots
- Six legs
- May have blue feet
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Adult beetles are most active during the summer and early fall. Throughout the summer, they can be seen on tree branches, walls, outdoor furniture, cars and sidewalks. During the winter months, the beetle’s larvae tunnel deep into and feed on the trees they infest.
There are ALB look-alikes, but the most common is the Whitespotted sawyer, which is often mistaken for the ALB. Here are the telltale differences: