Blue damselfly, common blue-tailed , Nelumbo nucifera

blue damselfly bluetailed azure damselfly exemplar big lotus leaf indian lotus nelumbo nucifera pond water ondulation reflections insect coenagrion puella enallagma cyathigerum ischnura elegans common bluetail zygoptera coenagrionidae nelumbonaceae coenagrion ischnura background wing small dragonfly anisoptera enallagma arthropod entomology arthropoda iridescent perched hindwings bioindicators wetland habitat phylum metallic colour odonata predatory insectivorous exoskeleton compound eyes ecosystem