The cynipid wasp is a small insect species that belongs to the family Cynipidae. It is known for its ability to lay eggs on oak trees, which then develop into galls. These galls can be of different shapes and sizes, and the wasp's emergence from them can lead to interesting patterns in the tree's bark. However, if left unchecked, cynipid wasps can overpopulate and damage trees. To avoid repetition in writing, some synonyms for cynipid wasp include gall wasps, oak wasps, and oak apple gall wasps. Learning these alternatives can help add variety and richness to one's vocabulary.