Some social aphids have evolved to live inside completely closed galls, which presents a waste disposal problem of the honeydew that collects inside the gall. Here, Kutsukake et al.show that the gall inner surface is specialized for absorbing water, removing honeydew via the plant vascular system.
- Mayako Kutsukake
- Xian-Ying Meng
- Takema Fukatsu
