Sumac Leaf Gall Aphid (Melaphis rhois)

The sumac leaf gall aphid, Melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. Pictured on smooth sumac, Rhus glabra. Photo: Maine Forest Service

The sumac leaf gall aphid, Melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. Pictured on smooth sumac, Rhus glabra. Photo Maine Forest Service

The sumac leaf gall aphid, Melaphis rhois, galls are largely inconsequential to plant health, but are an interesting biological curiosity. Pictured on smooth sumac, Rhus glabra.