Big Dipper Firefly vs Streamlined Backswimmer

Side-by-side species comparison

Attribute Big Dipper Firefly Streamlined Backswimmer
Scientific Name Photinus consimilis Notonecta irrorata
Order Coleoptera Hemiptera
Family Lampyridae Notonectidae
Size 8-12 mm 10-13 mm
Habitat Woodlands Ponds & Lakes
Diet Omnivores Omnivores
Regions North America North America
Conservation Least Concern Least Concern

Big Dipper Firefly

A common North American firefly that produces a slow, arching flash resembling the Big Dipper constellation pattern. It is active in early summer evenings.

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Did You Know?

Each species of Photinus has evolved its own unique flash pattern to avoid mating with the wrong species.

Streamlined Backswimmer

A pale backswimmer with mottled wings found in still and slow-moving waters across North America. Like other backswimmers, it hangs just below the water surface film waiting for prey vibrations. It is a strong underwater swimmer.

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Did You Know?

It senses prey by detecting surface water vibrations with specialized sensory hairs on its legs, effectively turning the water surface into a detection web.