A small number of species are seed-feeders, with the larva feeding in/on the developing fruits/seeds of the host plant. Examples of this type of larval behaviour include Liriomyza lutea (Meigen, 1830) whose larvae feed in the individual seeds of Hogweed (Heracleum sphondylium) and Wild Angelica (Angelica sylvestris), whilst Phytomyza krygeri Hering, 1949 larvae feed on the developing seeds inside the seed pods of Columbine (Aquilegia vulgaris). The images below shows a damaged seed pod of Aquilegia vulgaris, indicating that it is/was the subject of a feeding P. krygeri larva and an opened seed pod with a larva consuming the ripening seeds.
Damaged Aquilegia vulgaris seed pod caused by Phytomyza krygeri Hering, 1949 larva eating internal seeds © Barry P. Warrington
Phytomyza krygeri Hering, 1949 larva eating internal Aquilegia seeds © Barry P. Warrington
