Mayfly, Ephemeroptera Canon 400D EF 100 2.8 f/4.5 1/250 iso: 400 Celakovice-Jirina, Czech Republic 5/20/2011 #mayflies #Ephemeroptera #Insects #invertebrates #shadflies #wetlands

Mayfly, Ephemera sp, Ephemeroptera Canon 400D EF 100 2.8 f/5 1/125 iso: 400 Celakovice-Jirina, CZE May 20, 2011 #shadflies #frogfood, #mayfly #insect #insects #macro