Dicyrtomina saundersi

The only purpose built macro lens for the job is Canon's MP-E 65, it allows for magnification from 1x up to 5x, its manual focus only but that isn't a drawback, you set a magnification and then move the camera and lens back and forth by tiny amounts to get focus on your subject. This lens has now ceased production and although still easily available to buy new parts are becoming a problem for certain repairs to older copies of the lens, I just had to buy a new one as my lens was unrepairable. You would also need a good flash and bracket to mount it on to get enough light onto your subjects, I use a Wimberley macro bracket and a Canon 600 EX RT or a 270EX, the flash will be fast enough to freeze any motion so the camera and lens can be hand held when taking extreme macro shots like the one above.