Andricus clavigerus OS
Narrowly oval, inconspicuous blister galls, along midvein on underside, length 1/12 inch, on willow oak, early summer, sexual generation, gall wasp
”- EP Felt: (1940) Plant Galls and Gall Makers©
Reference: https://babel.hathitrust.org/cgi/pt?id=wu.89041294323&view=1up&seq=162&skin=2021&q1=punctatus