Trumpet-Net Caddis vs Blue Flea Beetle

Side-by-side species comparison

Attribute Trumpet-Net Caddis Blue Flea Beetle
Scientific Name Polycentropus flavomaculatus Altica lythri
Order Trichoptera Coleoptera
Family Polycentropodidae Chrysomelidae
Size 10-15 mm 4-5 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Herbivores
Regions Europe Europe
Conservation Least Concern Least Concern

Trumpet-Net Caddis

A caddisfly whose larvae spin trumpet-shaped silk nets to trap prey. It is common throughout European rivers and lakes.

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Did You Know?

Its trumpet-shaped capture net funnels prey into a waiting chamber where the larva ambushes them.

Blue Flea Beetle

A small metallic blue-green flea beetle that feeds on willowherb and evening primrose. Has enlarged hind femora enabling it to jump considerable distances. Widespread but often overlooked.

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Did You Know?

Despite its tiny size, it can jump over 100 times its own body length using its powerful hind legs.