© Copyright 2012 Andrew Trevor-Jones
Snail parasitic blowfly, Amenia sp., at Mount Sion Park, Glenbrook, New South Wales, Australia.
Nikon D300, Nikkor 60mm f/2.8D, Pop-up flash, Mini diffuser
ISO 200, 1/60s, f/22, EV+1.67
Apparently, these blowflies lay their eggs on land snails and the larvae become parasites on the snail.