Annual cicadas (dogday cicadas)
Jeff Hahn, Department of Entomology, University of Minnesota
Size: 1 - 1 1/2 inches long
Description: A stout insect with a green or brown body with black markings. They have clear wings and the first pair is much longer than their abdomen which they hold tent-like over their bodies. Produce a power line like sound.
Where/When: Found in urban and rural areas wherever hardwood trees are present. Active July through September.
Significance: The humming sound they produce can be a curiosity. They do not harm trees or other plants.