Thomas Marent / Citrus Butterfly (Papilio demodocus) drinking minerals and salts from soil, Jozani National Park, Zanzibar, Tanzania

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes), adult feeding on Prairie Verbena (Glandularia bipinnatifida), Hill Country, Texas, USA. April

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes), chrysalis, broken branch mimicry, Hill Country, Texas, USA. August

Loic Poidevin / Citrus swallowtail (Papilio demodocus) captive occurs in Africa.

Alex Hyde / Caterpillar of the Citrus Swallowtail butterfly (Papillio demodocus). The caterpillar is a bird dropping mimic. Captive, originating from Africa.

Adrian Davies / Citrus Swallowtail butterfly (Papilio demodocus) butterfly Farm, Devon, England, UK, July.

Pete Oxford / Asian Swallowtail (Papilio demodocus) butterfly, found throughout the island, Madagascar

Piotr Naskrecki / Citrus Butterfly (Papilio demodocus) caterpillar, Gorongosa National Park, Mozambique

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes) caterpillar extending osmeterium in defence. Caterpillar a bird dropping mimic. Hill Country, Texas, USA. Sequence 2/2.

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes) caterpillar prior to extending osmeterium in defence. Caterpillar a bird dropping mimic. Hill Country, Texas, USA. Sequence 1/2.

Rolf Nussbaumer / Giant swallowtail butterfly (Papilio cresphontes) nectaring on Prairie verbena (Glandularia bipinnatifida). Hill Country, Texas, USA.