White-Stockinged Black Fly vs Hornet Robber Fly
Side-by-side species comparison
| Attribute | White-Stockinged Black Fly | Hornet Robber Fly |
|---|---|---|
| Scientific Name | Simulium vittatum | Asilus crabroniformis |
| Order | Diptera | Diptera |
| Family | Simuliidae | Asilidae |
| Size | 2-5 mm | 18-28 mm |
| Habitat | Rivers & Streams | Grasslands |
| Diet | Blood Feeders | Predators |
| Regions | North America | Europe, North Africa |
| Conservation | Least Concern | Near Threatened (declining in northern Europe) |
White-Stockinged Black Fly
A widespread black fly species complex with distinctive white-banded legs. Larvae colonize almost any flowing water from irrigation ditches to large rivers.
Did You Know?
It is one of the most commonly encountered black fly species in laboratory research.
Hornet Robber Fly
Europe's largest robber fly, a hornet mimic with a yellow-and-brown body that hunts dung beetles on grazed pastures. Females lay eggs in animal dung where larvae develop as predators.
Did You Know?
It specifically hunts dung beetles, and its larvae develop as predators inside cow pats and horse droppings.