Potamanthus (Potamanthodes) formosus (Eaton)(작은강하루살이)
Canon | Canon EOS 450D | aperture priority (semi-auto) | spot | Auto W/B | 0.800 s (8/10) | F/0.0 | 1.33 (4/3) | 0.00(0/1) | ISO-100 | Flash-No | 2009:05:18 23:36:11