Western Ameletid Mayfly vs Thai Aquatic Firefly

Side-by-side species comparison

Attribute Western Ameletid Mayfly Thai Aquatic Firefly
Scientific Name Ameletus cooki Luciola aquatilis
Order Ephemeroptera Coleoptera
Family Ameletidae Lampyridae
Size 8-12 mm 5-8 mm
Habitat Mountains Ponds & Lakes
Diet Omnivores Omnivores
Regions North America Southeast Asia, Thailand
Conservation Least Concern Vulnerable

Western Ameletid Mayfly

A streamlined mayfly found in cold mountain streams of the Pacific Northwest. Nymphs are agile swimmers that dart between cobbles in riffles.

💡

Did You Know?

Nymphs are strong enough swimmers to move upstream against moderate currents.

Thai Aquatic Firefly

A small Thai firefly notable for having truly aquatic larvae with functional gills. It was one of the first fireflies confirmed to have larvae that live entirely underwater.

💡

Did You Know?

This species was described in 2010 and was notable for being the first firefly with confirmed fully aquatic larvae possessing tracheal gills.