Nyssa sylvatica
OR
Showing 12 species:
Aegomorphus morrisi
Non-gall
Contarinia n-sylvatica-swollen-flower
Undescribed
Parthenolecanium corni
Non-gall
Pulvinaria acericola
Non-gall
If none of these results match your gall, you may have found an undescribed species. However, before concluding that your gall is not in the database, try altering your filter choices.