Yellow-legged Dance Fly vs Riffle Beetle
Side-by-side species comparison
| Attribute | Yellow-legged Dance Fly | Riffle Beetle |
|---|---|---|
| Scientific Name | Empis livida | Elmis aenea |
| Order | Diptera | Coleoptera |
| Family | Empididae | Elmidae |
| Size | 7-10 mm | 1.5-2.5 mm |
| Habitat | Rivers & Streams | Rivers & Streams |
| Diet | Nectar Feeders | Detritivores |
| Regions | Europe | Europe |
| Conservation | Least Concern | Least Concern |
Yellow-legged Dance Fly
A medium-sized dance fly with yellowish legs, a grayish body, and a distinctive long proboscis. It forms conspicuous mating swarms near streams and in sheltered clearings.
Did You Know?
In some dance fly species, males wrap worthless objects in silk to trick females into mating, a form of sexual deception.
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.