James Dunbar / Froghopper nymph (Philaenus spumarius) in foam, 'Bristol, Captive.

MYN / Tim Hunt / Recently emerged Frog hopper (Philaenus spumarius) nymph, Barnt Green, Worcestershire, England, UK, June.

Alex Hyde / Cuckoo-spit, a protective foam secreted by the nymph of the Common froghopper (Philaenus spumarius). Devon, UK. June.

Alex Hyde / Common Froghopper (Philaenus spumarius), Peak District National Park, Derbyshire, UK. June.

MYN / Tim Hunt / Recently emerged frog hopper (probably Philaenus spumarius) nymph, Barnt Green, Worcestershire, UK, June. Meetyourneighbours.net project

Simon Colmer / Common froghopper (Philaenus spumarius) nymph secreting protective liquid known as cuckoo-spit. England, UK

PREMAPHOTOS / Common froghopper adult {Philaenus spumarius} newly emerged from nymphal skin and about to leave froth, 'cuckoo spit', covering UK

Duncan Mcewan / Planthopper / Froghopper (Philaenus genus) in protective spittal, Scotland, UK

Simon Colmer / Cuckoo spit, produced by Common froghopper nymph (Philaenus spumarius) for protection, UK.

Philippe Clement / Froghopper {Philaenus spumarius} next to white froth 'cuckoo spit' La Brenne, France.

Kim Taylor / Froghopper (Philaenus spumarius) froth nest (cuckoo spit) made by nymph on grass, UK

Kim Taylor / Froghopper emerging from 'cuckoo spit' on buttercup stem. England. {Philaenus sp}

Duncan Mcewan / Plant hopper {Philaenus sp} in protective spittal - cuckoo spit

Duncan Mcewan / Plant hopper {Philaenus genus} in protective spittal, Scotland, UK, Europe.

Mark Moffett / Meadow Froghopper (Philaenus spumarius) young queen entering hole she's chiseled inside Cecropia tree, carrying food grown by the tree, Peru

Nigel Cattlin / Cuckoo spit from Green / Meadow froghopper, (Philaneus spumarius) on lavender stems, Berkshire, June

Alex Hyde / Froghopper (Philaenus sp.) larva in cuckoospit, Nottinghamshire, UK. May.

Emanuele Biggi / Meadow spittlebug (Philaenus spumarius) nymph hiding in the bubbles it makes to stay safe and humid on a grass stem, Genova, Italy, May.

Nigel Cattlin / Cuckoo spit on a Stinging nettle leaf with a green Froghopper nymph (Philaenus spumarius) on stinging nettle leaf, Devon, June

Nigel Cattlin / Cuckoo spit on on a Rosemary bush caused by a Froghopper nymph (Philaenus spumarius), Devon, June

Nigel Cattlin / Cuckoo spit, frothy bubbles, exuded by common froghopper (Philaenus spumarius) nymph on rosemary plant, Berkshire, England, UK, June.

Nigel Cattlin / Cuckoo spit, frothy bubbles, exuded by common froghopper (Philaenus spumarius) nymph on rosemary plant, Berkshire, England, UK, June.

Nigel Cattlin / Cuckoo spit, frothy bubbles, exuded by common froghopper (Philaenus spumarius) nymph on rosemary plant, Berkshire, England, UK, June.

Nigel Cattlin / Cuckoo spit, frothy bubbles, exuded by common froghopper (Philaenus spumarius) nymph on rosemary plant, Berkshire, England, UK, June.