Trico Mayfly vs Red and Black Rove Beetle
Side-by-side species comparison
| Attribute | Trico Mayfly | Red and Black Rove Beetle |
|---|---|---|
| Scientific Name | Tricorythodes stygiatus | Paederus riparius |
| Order | Ephemeroptera | Coleoptera |
| Family | Leptohyphidae | Staphylinidae |
| Size | 3-6 mm | 7-10 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Detritivores | Omnivores |
| Regions | North America | Europe, Asia, Africa |
| Conservation | Least Concern | Least Concern |
Trico Mayfly
A tiny mayfly that forms enormous morning spinner falls over calm streams and rivers. Males have distinctive white bodies with black thoraxes.
Did You Know?
Trico spinner falls create such dense blankets of spent mayflies on the water surface that trout gorge themselves to satiation.
Red and Black Rove Beetle
A small but notorious rove beetle with a red thorax and abdomen and blue-black elytra. Its hemolymph contains pederin, a potent blistering toxin.
Did You Know?
Crushing this beetle on skin causes painful blistering dermatitis known as Paederus dermatitis.