Horn-faced Marsh Fly vs Thick-headed Fly
Side-by-side species comparison
| Attribute | Horn-faced Marsh Fly | Thick-headed Fly |
|---|---|---|
| Scientific Name | Dictya umbrarum | Physocephala rufipes |
| Order | Diptera | Diptera |
| Family | Sciomyzidae | Conopidae |
| Size | 4-7 mm | 8-14 mm |
| Habitat | Wetlands | Underground |
| Diet | Detritivores | Parasitoids |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
Horn-faced Marsh Fly
A small yellowish marsh fly with patterned wings and prominent facial ridges. Larvae feed on decomposing aquatic snails in shallow wetland habitats.
Did You Know?
Sciomyzid flies are the only family of Diptera in which the larvae are obligate associates of mollusks.
Thick-headed Fly
A wasp-mimicking fly that parasitizes bumblebees by injecting eggs into them mid-flight.
Did You Know?
Infected bumblebees bury themselves in soil where the fly larva pupates.