Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16Benchuca Bug Darwin was bitten many times in South America by the Benchuca bug. We now know that the bug carries Chagas disease and this may have been the cause of Darwin’s lifelong illness.