Blue-winged Olive Mayfly vs Overlooked Cave Beetle
Side-by-side species comparison
| Attribute | Blue-winged Olive Mayfly | Overlooked Cave Beetle |
|---|---|---|
| Scientific Name | Serratella ignita | Pseudanophthalmus praetermissus |
| Order | Ephemeroptera | Coleoptera |
| Family | Ephemerellidae | Carabidae |
| Size | 7-10 mm body | 4-5 mm |
| Habitat | Rivers & Streams | Caves |
| Diet | Omnivores | Omnivores |
| Regions | Europe | United States |
| Conservation | Least Concern | Endangered |
Blue-winged Olive Mayfly
A common mayfly of clean rivers and streams with distinctive blue-grey wings. One of the most important mayflies for fly fishing. Nymphs cling to stones in fast water.
Did You Know?
So important to fly fishers that dozens of artificial fly patterns have been designed to imitate its various life stages.
Overlooked Cave Beetle
A rare troglobitic beetle that was long confused with related species before being formally described. It is known from very few cave localities.
Did You Know?
Its common name reflects that it was overlooked by scientists for decades.