American Sand Mayfly vs Madagascan Moon Moth

Side-by-side species comparison

Attribute American Sand Mayfly Madagascan Moon Moth
Scientific Name Dolania americana Argema mittrei male form
Order Ephemeroptera Lepidoptera
Family Behningiidae Saturniidae
Size 10-15 mm body 200 mm wingspan with 150 mm tails
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Herbivores
Regions North America Madagascar
Conservation Least Concern Not Evaluated

American Sand Mayfly

Holds the record for the shortest adult lifespan of any insect — females live less than five minutes as adults, just long enough to mate and lay eggs before dying.

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Did You Know?

Female Dolania americana mayflies live less than five minutes as adults — they emerge, mate, lay eggs, and die faster than most people take a coffee break.

Madagascan Moon Moth

The male form has exceptionally long tail streamers that can exceed 15 cm. These tails spin in flight, confusing bat echolocation.

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Did You Know?

The spinning tail streamers deflect bat attacks away from the moth's body.