Among the most distressing losses are the Taiwan large crow (Euploea phaenareta juvia), Yang's shepherd's fritillary (Boloria pales yangi), and Taiwan's population of the monarch butterfly (Danaus plexippus), which are all determined to have become extinct in the 20th century.
其中，「大紫斑蝶」、「淺色小豹蛺蝶」、「帝王蝶」確定已在 20 世紀滅絕，令人痛心。