Wax-covered ash leafcurl aphids, Prociphilus (=Meliarhizophagus) fraxinifolii, on ash leaves distorted by their feeding.

Aphids on distorted ash leaves, UC Riverside Credit: Jack Kelly Clark
Wax-covered ash leafcurl aphids, Prociphilus (=Meliarhizophagus) fraxinifolii, on ash leaves distorted by their feeding. Credit: Jack Kelly Clark