Face Fly vs Mountain Prosimulium
Side-by-side species comparison
| Attribute | Face Fly | Mountain Prosimulium |
|---|---|---|
| Scientific Name | Musca autumnalis | Prosimulium mixtum |
| Order | Diptera | Diptera |
| Family | Muscidae | Simuliidae |
| Size | 7-8 mm | 2-4 mm |
| Habitat | Farmland | Mountains |
| Diet | Omnivores | Omnivores |
| Regions | Europe, North America | North America |
| Conservation | Least Concern | Least Concern |
Face Fly
A non-biting muscid fly that feeds on secretions around the eyes and nose of cattle. It is a mechanical vector of the cattle pinkeye pathogen Moraxella bovis.
Did You Know?
It enters homes in large numbers each autumn to overwinter, hence the name autumnalis.
Mountain Prosimulium
An early-season black fly of cold mountain streams in North America. Larvae develop in small headwater streams during late winter and early spring.
Did You Know?
Adults emerge so early in spring that they are often the first biting flies encountered by hikers each year.