Joel Sartore / Photo Ark / Treehopper (Umbonia ataliba) portrait, from the wild, La Libia, Costa Rica.

Roman Willi / Mexican treehopper (Membracis mexicana) resting on plant stem, San Jose, Costa Rica. Focus stacked image.

Roman Willi / Treehopper (Ceresini sp.) portrait, San Jose, Costa Rica. Focus stacked image.

Roman Willi / Treehopper (Membracidae) guarding its eggs, San Jose, Costa Rica. Focus stacked image.

Roman Willi / Thorn-hopper (Centrotus cornutus) resting on plant stem. Lucerne, Switzerland. June. Focus stacked.

Doug Wechsler / Wide-footed treehopper (Enchenopa latipes) resting on leaf, portrait, Pennsylvania, USA. August.

Doug Wechsler / Keeled treehopper (Entylia carinata) with eggs and a tiny Chalcid wasp (Trichogramma sp.) with purple wings, a parasitoid on the eggs of the Treehopper, Pennsylvania, USA. August.

Joel Sartore / Photo Ark / Wide-footed treehopper (Campylenchia latipes) crawling out of frame, Lincoln, Nebraska, USA. Controlled conditions.

Gil Wizen / Ant (Pheidole biconstricta) workers tending to a mite-bearing Membracid treehopper (Membracidae) which is guarding its eggs, Mindo, Ecuador.

Gil Wizen / Membracid treehopper (Enchenopa albidorsa) moulting into adult stage on a leaf, Jatun Sacha Biological Station, Napo province, Amazon basin, Ecuador.

David Weiller / Close up shot revealing Brazilian Treehopper (Bocydium globulare) with interesting helmet (head appendage) resting on leaf, Amazon rainforest, Puyo, Ecuador.

David Weiller / Close up shot revealing Brazilian Treehopper (Bocydium globulare) with interesting helmet (head appendage) fanning its wings whilst resting on leaf, Amazon rainforest, Puyo, Ecuador.