Blue Flea Beetle vs Striped Whirligig Beetle

Side-by-side species comparison

Attribute Blue Flea Beetle Striped Whirligig Beetle
Scientific Name Altica lythri Gyrinus substriatus
Order Coleoptera Coleoptera
Family Chrysomelidae Gyrinidae
Size 4-5 mm 5-7 mm
Habitat Rivers & Streams Ponds & Lakes
Diet Herbivores Omnivores
Regions Europe Europe, Western Asia
Conservation Least Concern Least Concern

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.

Striped Whirligig Beetle

A small whirligig beetle common across Europe, with fine longitudinal lines on the elytra. It aggregates in large swarms on sheltered pond surfaces.

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Did You Know?

Groups coordinate their circular swimming using ripples on the water surface as communication signals.