Two ball or apple galls have formed on this goldenrod stem. The larva inside will stay there through the winter and complete their development in the spring, then emerge as small adult goldenrod gall ...
1. Neotropical insect galls : status of knowledge and perspectives / G. Wilson Fernandes, Marcel S. Coelho, and Jean Carlos Santos -- 2. Developmental anatomy of galls in the Neotropics : arthropods ...
We have published an article describing a new calamitalean species named Annularia paisii with an insect gall about 303 million years old. This new fossil species was discovered in the region of São ...