The Cheilosiini are a small but distinctive tribe of hoverflies within the subfamily Eristalinae, best known for their wasp-like or sombre, non-typical syrphid appearance and their association with fungal habitats. Unlike the brightly marked flower-visiting hoverflies familiar to most observers, members of this tribe are generally dark, slender, and unobtrusive, often resembling solitary wasps or small empidid flies rather than typical syrphids.