Dr Douglas Frew Waterhouse CMG AO ForMemRS[1] (3 June 1916 – 1 December 2000) was an Australian entomologist.
He is best known for the invention of the active ingredient in Aerogard, an Australian insect repellent.
While this was a risky decision because of the threat that the dung beetles could themselves become pests or disrupt the delicate ecological balance, it proved very successful and reduced the population of bush flies by 90%.
He grew up at Eryldene in Gordon, a northern suburb of Sydney.
Douglas was introduced to entomology by his uncle Athol, who would take him on butterfly collection trips.