Actual size 13mm, River Lune, Lancashire UK

Canon EOS 300D and MP-E 65mm f/16, 1/160 with fill in flash

Robber flies wait (typically on leaves) for other insects, which then then catch in the air, before sucking them dry with their probosis. The poor quality of the shot is due to dust on my image sensor, but catching a robber fly with prey is rare enough that I thought I would have to share it.