damselfly calopteryx haemorrhoidalis, male

abdomen adult animal antennae biology body calopterygidae calopteryx closeup colors compound damselfly dark daylight delicate dimorphic entomology eyes flight fly haemorrhoidalis hunter insect lake large macro male marsh metallic metamorphosis moult nature odonata order outdoor outside pond predatory repeatedly river season seasonal segments slim suborder summer sunlight sunny ten territorial tiny water wetland wildlife wings zoology zygoptera