MYN / Joao P. Burini / Yellow leafhopper (Cercopidae) Tapirai, Sao Paulo, Brazil. Atlantic forest. Meetyourneighbours.net project.

Stephen Dalton / Cuckoo spit with Froghopper nymph ( Cercopoidea) visible. UK

Chris Mattison / Tropical froghopper (Cercopidae) Costa Rica.

Laurent Geslin / Red and black froghopper (Cercopis vulnerata) on dandelion seedhead, with landscape of Grenoble city in background, France, May 2013.

Alex Hyde / Froghopper (Cercopoidea) Osa Peninsula, Costa Rica

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.

Rod Williams / Red-and-black Froghopper (Cercopis vulnerata) Hutchinson's Bank, New Addington, South London, England, UK, May

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

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

Guy Edwardes / Alder spittlebug (Aphrophora alni) resting on nettle stem, Rhodope Mountains, Bulgaria. June.

Guy Edwardes / Alder spittlebug (Aphrophora alni) resting on nettle stem, Rhodope Mountains, Bulgaria. June.

Joel Sartore / Photo Ark / Costa Rica froghopper (Mahanarva costaricensis) portrait, from the wild, Tapir Valley, Costa Rica.

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

Roman Willi / Common froghopper (Cercopis vulnerata) resting on plant stem, Lucerne, Switzerland. June. Focus stacked image. Cropped.

Stephen Dalton / Froghopper (Cercophid) and grass seeds caught on jeans after stroll through long dry grass. They are difficult to tell apart when not magnified. England, UK.

Stephen Dalton / Red and black froghopper (Cercopis vulnerata) jumping, Sussex, England, UK, June.

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.

Nick Upton / Black and red froghopper (Cercopis vulnerata) sunning on a Bedstraw stem in a meadow, Wiltshire, UK, 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.