Olive Drake Mayfly vs Tropical Toed-Winged Beetle

Side-by-side species comparison

Attribute Olive Drake Mayfly Tropical Toed-Winged Beetle
Scientific Name Ephemera lineata Anchytarsus bicolor
Order Ephemeroptera Coleoptera
Family Ephemeridae Ptilodactylidae
Size 15-22 mm 6-9 mm
Habitat Rivers & Streams Forests
Diet Detritivores Detritivores
Regions North America Central America, South America
Conservation Least Concern Not Evaluated

Olive Drake Mayfly

A large burrowing mayfly with distinctive mottled brown wings. Nymphs excavate U-shaped burrows in sandy stream bottoms.

💡

Did You Know?

Mass emergences at dusk can be so dense they appear on weather radar.

Tropical Toed-Winged Beetle

A two-toned brown ptilodactylid beetle found in Central and South American cloud forests. Its larvae are riparian and develop in saturated leaf litter.

💡

Did You Know?

Its aquatic larvae breathe through retractable abdominal gills that can be withdrawn into the body cavity.