First Morpho-Functional Assessment of Immature Stages of Species (Diptera: Syrphidae) Feeding on False Truffles.

With 14 species, Meigen, 1822 is a scarce and small genus of hoverflies (Diptera: Syrphidae: Rhingiini) from the Holarctic Region. Apart from the finding of larvae of () (Shiraki, 1956) in fungi in Japan, the larval biology of these hoverflies is virtually unknown. The early stages of all species are undescribed.