Milkweed locusts (Phymateus morbillosus) mating in a tree. Milkweed locusts are sexually dimorphic, the female (left) is much larger than the male (ri

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Milkweed locusts (Phymateus morbillosus) mating in a tree. Milkweed locusts are sexually dimorphic, the female (left) is much larger than the male (right). These locusts do not exhibit any courtship behaviour, the male merely mounts a nearby female and mates with her. Milkweed locusts are also known as foaming locusts, due to a foul-tasting foam they excrete when under attack. To warn predators of this, the locusts first change colour, known as aposematic colouration. Although both sexes have full sets of wings, the females do not fly, and the males only fly short distances. Photographed in Kamanassie, South Africa.

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Size: 5250px × 3529px
Photo credit: © PETER CHADWICK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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