Blue-Winged Olive vs Hercules Moth

Side-by-side species comparison

Attribute Blue-Winged Olive Hercules Moth
Scientific Name Baetis tricaudatus Coscinocera hercules
Order Ephemeroptera Lepidoptera
Family Baetidae Saturniidae
Size 5-9 mm 270 mm wingspan
Habitat Rivers & Streams Forests
Diet Omnivores Omnivores
Regions North America Oceania
Conservation Least Concern Least Concern

Blue-Winged Olive

A small olive-colored mayfly with distinctive bluish-gray wings, abundant in clean streams across North America. It produces multiple generations per year.

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Did You Know?

Blue-winged olives are among the few mayflies that hatch in winter, providing vital food for trout during cold months.

Hercules Moth

Has the largest wing area of any moth — up to 300 square centimeters. Named after Hercules for its great size. Adults live only about two weeks and do not eat.

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Did You Know?

The Hercules moth has the largest wing surface area of any insect on Earth — its wings can cover an area larger than an open human hand.