Giant Robber Fly vs Narcissus Bulb Fly
Side-by-side species comparison
| Attribute | Giant Robber Fly | Narcissus Bulb Fly |
|---|---|---|
| Scientific Name | Promachus fitchii | Merodon equestris |
| Order | Diptera | Diptera |
| Family | Asilidae | Syrphidae |
| Size | 20-35 mm | 10-15 mm |
| Habitat | Meadows | Underground |
| Diet | Predators | Nectar Feeders |
| Regions | North America | Europe, North America (introduced), Oceania (introduced) |
| Conservation | Least Concern | Least Concern |
Giant Robber Fly
A large, bristly predatory fly with powerful grasping legs and a sharp proboscis. It ambushes prey in mid-air with remarkable speed and precision, including insects larger than itself.
Did You Know?
Robber flies inject prey with saliva containing neurotoxins and digestive enzymes, liquefying the insides and then sucking them out.
Narcissus Bulb Fly
A bumble bee-mimicking hoverfly that comes in multiple color forms matching different bumblebee species. Its larvae bore into and destroy daffodil and narcissus bulbs.
Did You Know?
It exists in multiple color forms, each mimicking a different bumblebee species found in the same habitat.