Morley Read / Parrot snake (Leptophis ahaetulla), with a fly on its head, enters its mouth, Amazon rainforest, Orellana Province, Ecuador. (non-ex)

Bernard Castelein / Snakefly (Phaeostigma notata) Groot Schietveld, Belgium. May

Lucas Bustamante / Ecuadorian toadhead (Bothrocophias campbelli) with Mosquito (Culicidae) feeding on its head, Mindo, Pichincha, Ecuador.

Lucas Bustamante / Chocoan parrot snake (Leptophis bocourti) on heliconia flower with fly in background, Sarapiqui, Heredia, Costa Rica.

Michael & Patricia Fogden / Banded King Shoemaker (Prepona demophon) catterpillar anterior body expanded to expose false eye spots and mimic snake, note eggs of parasitic Tachinid fly, rainforest, Costa Rica

Paul Harcourt Davies / Snake fly (Phaeostigma notata) female, resting on flowerhead, Sibillini, Umbria, Italy. May.

Bert Willaert / Portrait of a Bismarck Ringed python (Bothrochilus boa) with fly, Willaumez Peninsula, New Britain, Papua New Guinea, December

Andy Sands / Snakefly (Raphidia notata) on leaf in garden, Hertfordshire, England, UK, June - Focus Stacked