Damage usually results in wilted leaves or drooping girdled tips. Larvae tunnel within the center of the twig, making a series of holes in the twig. Larvae push the boring dust and frass out of the twigs. In most areas, this insect requires two years to complete its life cycle. This insect is one of the most commonly encountered roundheaded borers.
Adults feed on pollen, especially of goldenrod, and larvae bore and feed in black locust.
Only one generation occurs each year. The above insects are examples of some of the coleopterans that you may encounter. This group is the largest among the insect world - learn to identify the damaging ones and utilize the beneficial ones.