The Overland Track, Tasmania-A moth's last breath?

While hauling a 75lb pack across a 100K trek in the Tasmanian alpine wilderness just a few weeks ago, I took note of this moth in a muddy water filled flat. I quickly realized the potential for a stark shot and dropped my pack for a break. I had to hold up my jacket to get rid of the reflection of the sky in the water and induce a almost totally black enviroment which I achieved by spot metering off the mud and underexposing by three stops. I still need to find out what kind of moth this is and if it was drinking or dying. Day-3. Nikon F-100 60mm 2.8 Nikkor at 5.6, 1/125 of a sec.