anotogaster sieboldii, as known as golden-ringed dragonfly, jumbo dragonfly, siebold's dragonfly or oniyanma

insect animal invertebrate yellow arthropod wing dragonfly green blue damselfly fly pest spider nature anotogaster sieboldii golden-ringed jumbo siebold's oniyanma eggs hatch month laid nymphs live three five years moulting times growing large centimeters length like adult predatory insects nymphs' size bigger hunt tadpoles aquatic insects small fish mate lay two months metamorphosis mating females head creeks ponds fast-moving rivers lakes eggs perpendicularly water laying mud sand surface