Large oakapple gall

• French common name: Grosse galle pommée du chêne
• Scientific name: Amphibolips quercusinanis (Osten Sacken)
• Kingdom: Animalia
• Phylum: Arthropoda
• Class: Insecta
• Order: Hymenoptera
• Family: Cynipidae
• Partial list of synonyms:
  • Amphibolips inanis Osten Sacken

Canadian Forest Service Publications

Large oakapple gall

Diet and feeding behaviour

• Phyllophagous: Feeds on the leaves of plants.
  • Gall-forming: Induces the formation of galls and feeds on their tissues.

Information on host(s)

Main host(s)

• Red oak
• White oak

Photos

Appearance gall early in the season, under an oak leaf

Thérèse Arcand

Mature gall showing adult exit hole

Thérèse Arcand

Female adult

Thérèse Arcand

Transversal cut of same gall

Thérèse Arcand

Transversal cut of gall showing the larva

Thérèse Arcand

Gall on a leaf oak

Jean-Pierre Bérubé