Some cool endangered species animals images:
Lycaeides melissa samuelis, male, close up scale,_2013-01-24-14.39.54 ZS PMax
Image by USGS Bee Inventory and Monitoring
Karner Blue, Lycaeides melissa samuelis, an endangered lupine eater, This one from Indiana, while the specimen is not in great shape, at full resolution the scales and micro patterns are still beautiful