Small-headed Stonefly vs White-Stockinged Black Fly
Side-by-side species comparison
| Attribute | Small-headed Stonefly | White-Stockinged Black Fly |
|---|---|---|
| Scientific Name | Perlodes microcephala | Simulium vittatum |
| Order | Plecoptera | Diptera |
| Family | Perlodidae | Simuliidae |
| Size | 15-22 mm body | 2-5 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Predators | Blood Feeders |
| Regions | Europe | North America |
| Conservation | Least Concern | Least Concern |
Small-headed Stonefly
A large spring-emerging stonefly found in clean upland rivers. Nymphs are predatory, feeding on mayfly and midge larvae. An important bioindicator species.
Did You Know?
Nymphs require the cleanest, most oxygen-rich water of any stonefly, making them sensitive pollution indicators.
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.