p7080008 close-up of a grousewinged backswimmer notonecta undulata upside-down under the water surface, british columbia, canada

america animal aquatic arthropod arthropoda backswimmer blue british bug canada close closeup columbia creek detail eyes fauna freshwater grousewinged hemiptera insect insecta invertebrate lake macro natural nature north notonecta notonectidae photography pond predator predatory pretty red river spring states stream submerged summer swamp swimming undulata united wild