Japanese Burrowing Mayfly vs Small Minnow Mayfly

Side-by-side species comparison

Attribute Japanese Burrowing Mayfly Small Minnow Mayfly
Scientific Name Ephemera japonica Callibaetis ferrugineus
Order Ephemeroptera Ephemeroptera
Family Ephemeridae Baetidae
Size 15-25 mm 7-11 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Omnivores Detritivores
Regions Japan, East Asia North America
Conservation Least Concern Least Concern

Japanese Burrowing Mayfly

A large burrowing mayfly native to Japanese rivers and streams. It emerges in large numbers during early summer evenings.

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Did You Know?

It is culturally significant in Japan, where mayfly emergence has been celebrated in poetry for centuries.

Small Minnow Mayfly

A mottled brown mayfly common in still waters across North America. Nymphs are excellent swimmers that mimic small minnows.

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Did You Know?

It can produce up to three generations per year in warm climates.