- Species Education
- Insecticides
Face Fly (Musca autumnalis)
Description
- Dark gray
- Four dark stripes on thorax
- Abdomen dark gray in males, black in females
- Orange at sides in males
- 7 to 8 mm long
Life Cycle
- Complete lifecycle takes 14 to 18 days
- Generally live in and around homes and structures on cattle operations
- Female lays up to 150 small, white eggs in fresh manure
- Eggs hatch in a few hours into maggots
- Maggots mature to pupal stage in 3 to 10 days
Food Source
- Female face flies feed on the secretions of mucus and secretions from the eyes and nostrils of cattle and horses; male face flies feed primarily on nectar and dung
- Fresh cattle manure serves as the optimal place for female face flies to deposit eggs
Indications
- Pinkeye
Threat
- Can transmit Moraxella bovis, the bacteria that causes pinkeye in cattle
- Disrupt cattle feeding and reduce weight gain
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