One of only two Caryomyia galls that occur exclusively on the upper leaf surface of hickories (Carya). Pupes break out of the weak cap at the gall's apex. Adults emerge in April. (BugGuide)
There are 13 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |