This is an awesome photo of Wallace’s golden Birdwing butterfly on flower. Wallace’s Golden Birdwing butterfly is also known as Ornithoptera croesus butterfly. A species of birdwing butterfly found in northern Maluku in Indonesia. The male’s upperside wings are black and have a yellow costal band. The underside is black and marked with lines of green chevrons. The upperside hindwings are yellow and the underside is green, yellow towards the costa. The female are larger than males and have brown wings marked with lines of yellow chevrons.