When I was working for Michael White, his great interest was the midge Miastor. Very interesting midge in terms of its chromosome cycle which is what interested him. It has lots of chromosomes, nearly all of which it sheds in its- it has a somatic cell life. The midge grows- the larvae grow from eggs laid on dead elm trees by flies and, as Michael White said, it was remarkable how often he had been out at Hyde Park at night, there were all these branches of elm trees lying around, which he would come back for- for them back later and harvest the Miastor.