Alpine Cave Springtail vs Neotropical Backswimmer

Side-by-side species comparison

Attribute Alpine Cave Springtail Neotropical Backswimmer
Scientific Name Onychiuroides alpinus Buenoa antigone
Order Collembola Hemiptera
Family Onychiuridae Notonectidae
Size 0.8-1.2 mm 5-9 mm
Habitat Caves Ponds & Lakes
Diet Omnivores Omnivores
Regions Italy Brazil, Argentina, Uruguay, Paraguay
Conservation Data Deficient Least Concern

Alpine Cave Springtail

A recently described blind springtail from caves in the Italian Alps. It lacks eyes, pigment, and a jumping furca.

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Did You Know?

It survives in caves where temperatures remain just a few degrees above freezing.

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.

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Did You Know?

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