Caterpillars on tree IMG_9514
I found these caterpillars on a Virgilia divaricata tree in Fernkloof Nature Reserve, Hermanus, South Africa. Each is about 6cm long and they are all sitting with their heads downwards. 5 days later they were still in the same position
What kind of caterpillar is it and what does the butterfly look like? Why do they behave like this?