Heike Firefly vs Western Ameletid Mayfly

Side-by-side species comparison

Attribute Heike Firefly Western Ameletid Mayfly
Scientific Name Luciola lateralis Ameletus cooki
Order Coleoptera Ephemeroptera
Family Lampyridae Ameletidae
Size 7-10 mm 8-12 mm
Habitat Farmland Mountains
Diet Omnivores Omnivores
Regions Japan, Korean Peninsula North America
Conservation Near Threatened Least Concern

Heike Firefly

A Japanese firefly associated with rice paddies, smaller than the Genji firefly. It flashes more rapidly and is found in lowland wetland habitats.

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Did You Know?

It is named after the Heike clan from Japanese history and is celebrated alongside the Genji firefly in summer festivals.

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.

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Did You Know?

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