Pest Photo

Robert L. Anderson, USDA Forest Service, Bugwood.org

Scarlet oak sawfly

Caliroa quercuscoccineae

Scarlet oak sawfly (Caliroa quercuscoccineae) is an insect pest. It was first detected in Nebraska in 1990.

The larvae of this sawfly, a type of gregarious wasp, can cause defoliation of various red oak species.