White Miller Caddisfly vs Azure Damselfly of Azores

Side-by-side species comparison

Attribute White Miller Caddisfly Azure Damselfly of Azores
Scientific Name Nectopsyche albida Ischnura hastata
Order Trichoptera Odonata
Family Leptoceridae Coenagrionidae
Size 8-12 mm 2.5-3 cm
Habitat Ponds & Lakes Ponds & Lakes
Diet Detritivores Predators
Regions North America Portugal
Conservation Least Concern Vulnerable

White Miller Caddisfly

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

💡

Did You Know?

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

Azure Damselfly of Azores

On the Azores, this species has evolved the only known all-female population of any odonate. These females reproduce through parthenogenesis.

💡

Did You Know?

The Azores population is entirely female and reproduces without mating, a phenomenon unique among dragonflies and damselflies.