Green Sedge vs Eastern Tiger Swallowtail

Side-by-side species comparison

Attribute Green Sedge Eastern Tiger Swallowtail
Scientific Name Rhyacophila dorsalis Papilio glaucus
Order Trichoptera Lepidoptera
Family Rhyacophilidae Papilionidae
Size 10-14 mm 79-140 mm wingspan
Habitat Rivers & Streams Rivers & Streams
Diet Predators Nectar Feeders
Regions Europe, Asia North America
Conservation Least Concern Least Concern

Green Sedge

A free-living caddisfly larva that does not build a case, instead roaming the streambed as an active predator. Adults have greenish wings.

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Did You Know?

Unlike most caddisflies, green sedge larvae are caseless predators that hunt like underwater wolves among the stream cobbles.

Eastern Tiger Swallowtail

A large yellow butterfly with bold black tiger stripes and blue and orange markings on the hindwing margins. Females can occur in a dark morph mimicking the toxic pipevine swallowtail.

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Did You Know?

The caterpillar has large false eyespots and can evert an orange forked gland called an osmeterium that emits a foul smell to deter predators.