Neotropical Backswimmer vs Mountain Seed Bug

Side-by-side species comparison

Attribute Neotropical Backswimmer Mountain Seed Bug
Scientific Name Buenoa antigone Nysius helveticus
Order Hemiptera Hemiptera
Family Notonectidae Lygaeidae
Size 5-9 mm 3-5 mm body length
Habitat Ponds & Lakes Grasslands
Diet Omnivores Seed Feeders
Regions Brazil, Argentina, Uruguay, Paraguay Alps, Central European mountains
Conservation Least Concern Least Concern

Neotropical Backswimmer

A small aquatic bug that swims upside-down using its long oar-like hind legs. Its pale ventral surface provides camouflage when viewed from below against the sky.

💡

Did You Know?

It carries a silvery air bubble on its belly that functions like a physical gill, extracting dissolved oxygen from the water.

Mountain Seed Bug

A small seed bug found in alpine and subalpine grasslands across Europe. It feeds on seeds and sap of various mountain plants.

💡

Did You Know?

Large swarms sometimes form on mountain summits during warm summer days.