It is a predatory insect, feeding on small insects including greenfly and red spider mites. F2838 on a relief expedition to drop food to a stranded boat, the "Greenfly". The Greenfly threat is described in detail in the book "Galactic North". Greenfly also co-runs Subfactory, a free weekly drum'n'bass event in Reading, Berkshire, England. In their world, the Greenfly gradually consume the entire universe, rendering it uninhabitable.