Oak Lace Bug Damage
Oak lace bugs (Corythucha arcuata), like other lace bugs, cause stippling on leaves. Oak lace bugs, of course, feed on oak leaves just as sycamore lace bugs feed on sycamore and azalea lace bugs feed on azaleas.
You may notice leaf discoloration on oaks due to lace bug feeding or oak spider mite feeding. It is easy to tell the difference if you turn over a leaf. Lace bugs are large (compared to mites) and adults are ornate. There will also be dark brown eggs and dark brown spiky nymphs.
Typically, oak lace bugs do not require any management. Even if they are severe tree health will not be affected. Folks concerned about the aesthetic injury could consider horticultural oil or soap applications as an inexpensive low toxicity first pass. If insecticides become necessary you can find recommendations in the Southeastern US Pest Control Guide for Nursery Crops and Landscape Plantings.