Phantom Midge vs Green Sedge

Side-by-side species comparison

Attribute Phantom Midge Green Sedge
Scientific Name Chaoborus crystallinus Rhyacophila dorsalis
Order Diptera Trichoptera
Family Chaoboridae Rhyacophilidae
Size 8-10 mm 10-14 mm
Habitat Ponds & Lakes Rivers & Streams
Diet Predators Predators
Regions Europe, North America Europe, Asia
Conservation Least Concern Least Concern

Phantom Midge

A nearly transparent midge whose larvae are planktonic predators in lakes. Larvae migrate vertically in the water column daily to avoid fish predation.

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Did You Know?

Its glass-clear larvae are almost invisible in water, earning the common name glassworm.

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.