Small Minnow Mayfly vs White Miller Caddisfly

Side-by-side species comparison

Attribute Small Minnow Mayfly White Miller Caddisfly
Scientific Name Callibaetis ferrugineus Nectopsyche albida
Order Ephemeroptera Trichoptera
Family Baetidae Leptoceridae
Size 7-11 mm 8-12 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Detritivores Detritivores
Regions North America North America
Conservation Least Concern Least Concern

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.

White Miller Caddisfly

A small white caddisfly commonly found near lights along eastern North American waterways. Its delicate white wings make it easily recognizable.

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Did You Know?

White millers swarm around riverside lights in such numbers that they can create slippery hazards on bridges and roadways.