Appias olferna peducaea. Credit: Wikicommons/Peellden. ” Seven brand-new butterfly species were found in Hong Kong in 2021, consisting of swallowtails, gray butterflies, and nymphs; most of them were tropical types,” Gary Chan, task officer at Hong Kongs Fengyuan Butterfly Reserve, told RFA.” Breeding records were discovered in Hong Kong for several of these types, which