Celyphidae, commonly known as beetle flies or beetle-backed flies, are a family of flies (Order Diptera). About 90 species are known from the Oriental and Afrotropic biogeographic regions.
Celyphidae are small to medium-sized and easily recognised. The scutellum is enlarged, forming a protective shell over the abdomen, giving them a beetle-like appearance. Also, like many beetles, Celyphidae are often shiny or metallic in color. The wings, when at rest, are folded beneath the scutellar "shell".