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Philaenus spumarius

Froghoppers are small, brown insects that can jump great distances if threatened. They hold their wings together like a tent over their body.

Their larvae are more commonly seen coated in a mass of froth – or cuckoo spit – on plant stems.

This froth protects the larva from predators as it feeds on young leaves and shoots, and it also stops it from drying out. The larva produces the froth by forcing air into a fluid exuded from its anus.

What does it eat?

Plant sap. Larvae eat young leaves.

When will I see it?

Adults and cuckoo spit from June to September.

Where will I see it?

Adults on woody and herbaceous plants. Cuckoo spit on plant stems. Also in parks and meadows.

Vital statistics

Length: About 6 mm


Not seen in JanuaryNot seen in FebruaryNot seen in MarchNot seen in AprilNot seen in MaySeen in JuneSeen in JulySeen in AugustSeen in SeptemberNot seen in OctoberNot seen in NovemberNot seen in December

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