Common froghopper

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Common froghopper

Scientific name: Philaenus spumarius
In spring and summer, look out for 'cuckoo-spit' - the frothy mass of bubbles that appears on plant stems everywhere. This is actually the protective covering for the nymphs of the tiny Common froghopper.

Species information


Length: 5-7mm

Conservation status


When to see

June to September


You might not be able to identify a Common froghopper outright, but it is likely that you are familiar with the protective, frothy mass of bubbles that houses the nymphs in spring and summer: known to many of us as 'cuckoo-spit'. The adult is a champion jumper and is able to leap 70cm into the air - a greater feat than the flea and similar to a human jumping over a tower block! Adults mate back-to-back, and the subsequent nymphs go through a number of stages. Both adults and nymphs feed on plant sap using specialised, sucking mouthparts.

How to identify

The tiny adult Common froghopper is very variable in pattern from black and white to many shades of brown; the nymph is green and lives in 'cuckoo-spit' - a frothy mass found on grass and plant stems. The adult holds its wings over its body, making it look like an elongated oval. This is just one of many species of froghopper in the UK, which are very difficult to tell apart.



Did you know?

The initial stages of the jump of the Common froghopper are so powerful that a G-force of over 400 gravities is generated; in comparison, an astronaut rocketing into orbit experiences a G-force of 5 gravities. Such amazing force is possible due to the Common Froghopper's powerful hind legs.

How people can help

Our gardens are a vital resource for wildlife, providing corridors of green space between open countryside, allowing species to move about. In fact, the UK's gardens provide more space for nature than all the National Nature Reserves put together. So why not try planting native plants and trees to entice birds, mammals and invertebrates into your backyard? To find out more about encouraging wildlife into your garden, visit our Wild About Gardens website: a joint initiative with the RHS, there's plenty of facts and tips to get you started.