Termite-parasitoid
Guides
Megaselia scalaris
Scaled Hump-backed Fly, scuttle fly, coffin fly, humpbacked fly, laboratory fly
Megaselia scalaris is a small phorid fly, approximately 2–3 mm in length, widely distributed in warm regions globally. It is one of the most commonly encountered species in the family Phoridae, particularly in urban environments. The species exhibits remarkable ecological flexibility, functioning as a decomposer, facultative parasitoid, and forensic indicator. Adults display characteristic jerky running behavior, earning the common name "scuttle fly." The species has been documented in diverse contexts including coffins, decomposing carrion, termite mounds, social wasp nests, and deteriorating museum specimens.