Swamp Metalmark vs Labrador Minnow Mayfly
Side-by-side species comparison
| Attribute | Swamp Metalmark | Labrador Minnow Mayfly |
|---|---|---|
| Scientific Name | Calephelis mutica | Baetis labradoriensis |
| Order | Lepidoptera | Ephemeroptera |
| Family | Riodinidae | Baetidae |
| Size | 22-28 mm wingspan | 5-8 mm |
| Habitat | Wetlands | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | Upper Midwest United States, Great Lakes region | North America |
| Conservation | Near Threatened; extremely local | Least Concern |
Swamp Metalmark
A rare and localized metalmark butterfly of midwestern wetlands with warm rusty-brown wings marked with fine metallic lines. It has very specific habitat requirements.
Did You Know?
Some populations consist of fewer than 50 individuals, making it one of North America's most vulnerable butterflies.
Labrador Minnow Mayfly
A small mayfly found in cold northern streams with rapid currents. Nymphs cling to submerged stones and feed on periphyton.
Did You Know?
Nymphs can complete their development in as little as three weeks during warm summer conditions.