Milkweed locusts

Milkweed locusts

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Caption: 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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Keywords: africa, animal, aposematic colouration, biological, biology, branch, copulating, copulation, duo, entomology, fauna, flying, foam, foaming locust, hanging, herbivore, herbivores, insect, invertebrate, invertebrates, kamanassie, mating, milkweed locust, nature, pair, phymateus morbillosus, reproducing, sexual dimorphism, sexual reproduction, south africa, tree, two, wildlife, winged, zoological, zoology

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