St Mark's Fly vs Fleshfly (Dux)
Side-by-side species comparison
| Attribute | St Mark's Fly | Fleshfly (Dux) |
|---|---|---|
| Scientific Name | Bibio johannis | Sarcophaga dux |
| Order | Diptera | Diptera |
| Family | Bibionidae | Sarcophagidae |
| Size | 6-10mm | 10-16 mm |
| Habitat | Underground | Woodlands |
| Diet | Root Feeders | Detritivores |
| Regions | Europe | Tropical Asia, Pacific Islands, Australia |
| Conservation | Least Concern | Least Concern |
St Mark's Fly
A small black fly that swarms in May. Males have large heads with huge eyes that almost meet on top.
Did You Know?
Often confused with the larger Bibio marci but emerges slightly later and has entirely dark legs.
Fleshfly (Dux)
A large gray flesh fly common across tropical Asia and the Pacific that is an important cause of wound myiasis and secondary myiasis of the ear and nose. Females deposit live larvae directly into wounds and body cavities. It is frequently associated with unsanitary conditions in tropical urban areas.
Did You Know?
Cases of aural myiasis caused by this fly, where larvae infest the ear canal, are regularly reported in tropical Asian hospitals.