Nettle-tap Flea Beetle vs Common Water Strider

Side-by-side species comparison

Attribute Nettle-tap Flea Beetle Common Water Strider
Scientific Name Longitarsus nasturtii Aquarius remigis
Order Coleoptera Hemiptera
Family Chrysomelidae Gerridae
Size 1.5-2 mm 11-16 mm
Habitat Rivers & Streams Rivers & Streams
Diet Root Feeders Omnivores
Regions Europe Throughout North America
Conservation Least Concern Least Concern

Nettle-tap Flea Beetle

A tiny yellowish-brown flea beetle found on watercress and other crucifers in damp habitats. Larvae mine in plant roots. Can be a minor pest of commercial watercress.

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Did You Know?

Commercially grown watercress can be damaged by this beetle, which is nearly invisible to the naked eye.

Common Water Strider

A slender dark brown insect that skates across the surface of streams and ponds using water surface tension. Its long middle and hind legs distribute its weight over the water film.

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Did You Know?

Tiny hydrophobic hairs on its legs trap air and repel water, allowing it to stand on the surface without breaking through.