Takashi Nishizawa’s “The Expedition and Collecting in the West Irian” was the starting point that led me to Birdwing Butterflies. I had only known green O. priamus until then, but I became aware of the existence of green, black and golden O. goliath (i.e. subgenus Schoenbergia). Reading that section now, the same excitement comes back, comparable to Wallace’s episode of the discovery of the red O. croesus. Only an insect lover could understand this feeling. (Yasui)
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