Large Stonefly vs Red Poplar Leaf Beetle

Side-by-side species comparison

Attribute Large Stonefly Red Poplar Leaf Beetle
Scientific Name Perla bipunctata Chrysomela populi
Order Plecoptera Coleoptera
Family Perlidae Chrysomelidae
Size 20-30 mm 10-12 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Herbivores
Regions Europe Europe, Asia
Conservation Near Threatened Least Concern

Large Stonefly

One of the largest European stoneflies with a distinctive pair of pale spots on its head. Its predatory nymphs live among stones in fast-flowing rivers.

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Did You Know?

Large stonefly nymphs require three years to complete development, making them particularly vulnerable to long-term changes in water quality.

Red Poplar Leaf Beetle

A shiny red-orange beetle with a black head, commonly found on poplar and willow trees. Larvae release a pungent salicylaldehyde when disturbed.

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Did You Know?

Larvae convert compounds from willow leaves into a chemical that smells like almonds to deter predators.