Riffle Beetle vs South African Brown Stonefly
Side-by-side species comparison
| Attribute | Riffle Beetle | South African Brown Stonefly |
|---|---|---|
| Scientific Name | Elmis aenea | Neoperla spio |
| Order | Coleoptera | Plecoptera |
| Family | Elmidae | Perlidae |
| Size | 1.5-2.5 mm | 12-20 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Predators |
| Regions | Europe | Africa |
| Conservation | Least Concern | Least Concern |
Riffle Beetle
A tiny, dark beetle that spends its entire adult life underwater clinging to rocks in riffles. It breathes using a plastron, a permanent thin film of air.
Did You Know?
Its plastron air film never needs replenishing, allowing it to remain permanently submerged.
South African Brown Stonefly
A medium-sized brown stonefly found in rivers and streams of southern and eastern Africa. Nymphs are predatory and favor rocky riffles.
Did You Know?
Neoperla is one of the few stonefly genera found across both Africa and tropical Asia.