Pelidnota punctata

Also known as Spotted June Beetle, Spotted Pelidnota

Grapevine beetles are robust, dull yellow-brown scarabs recognizable by six distinct dark spots along the edges of their wing covers and a pair on the thorax. Adults fly with a characteristic loud buzzing sound during summer evenings, often drawn to porch lights or found feeding on wild and cultivated grape foliage. Their thick grubs develop inside decaying logs and stumps, where they contribute to wood decomposition over a two-year lifecycle.