Mountain Flathead Mayfly vs Twin-spotted Spiketail
Side-by-side species comparison
| Attribute | Mountain Flathead Mayfly | Twin-spotted Spiketail |
|---|---|---|
| Scientific Name | Cinygmula ramaleyi | Cordulegaster maculata |
| Order | Ephemeroptera | Odonata |
| Family | Heptageniidae | Cordulegastridae |
| Size | 7-10 mm | 68-78 mm |
| Habitat | Mountains | Rivers & Streams |
| Diet | Omnivores | Omnivores |
| Regions | North America | North America |
| Conservation | Least Concern | Least Concern |
Mountain Flathead Mayfly
An alpine mayfly restricted to high-elevation cold streams in the Rocky Mountains. Nymphs feed on diatom films on boulder surfaces.
Did You Know?
This species cannot survive in water temperatures above 15 degrees Celsius.
Twin-spotted Spiketail
A large, dark brown spiketail with paired yellow spots on each abdominal segment. It is the most common spiketail in eastern North America.
Did You Know?
Its larvae lie partially buried in stream-bottom leaf litter and ambush passing prey.