American Owlfly vs Small-headed Stonefly
Side-by-side species comparison
| Attribute | American Owlfly | Small-headed Stonefly |
|---|---|---|
| Scientific Name | Ululodes quadripunctatus | Perlodes microcephala |
| Order | Neuroptera | Plecoptera |
| Family | Ascalaphidae | Perlodidae |
| Size | 20-30 mm body, 50-65 mm wingspan | 15-22 mm body |
| Habitat | Meadows | Rivers & Streams |
| Diet | Predators | Predators |
| Regions | North America | Europe |
| Conservation | Least Concern | Least Concern |
American Owlfly
A dragonfly-like neuropteran with split eyes and long knobbed antennae. It catches small insects on the wing during twilight flights.
Did You Know?
Its eyes are divided into upper and lower halves, allowing it to see both above and below simultaneously.
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.