Melaphis rhois

The bladder-like galls produced the Sumac Gall Aphid are becoming evident on the leaflet midveins of its namesake host in southwest Ohio. They currently measure between around 1/4" to 1/2" in diameter and their size coupled with their light green color can make them difficult to detect.

The bladder-like galls produced the Sumac Gall Aphid on the leaflet midveins of its namesake host are almost fully expanded in southwest Ohio. They currently measure between 1/2" to 1" in length; however, despite their size, their light green color can make them difficult to detect.