Some useful websites to ID caterpillars in Hong Kong
Rearing caterpillars into moth/butterfly is the ultimate way to know the ID of the caterpillars. Thanks to many enthusiastic people's efforts, Some local caterpillars have confirmed links to adults.
Life history of Hong Kong caterpillars 香港毛蟲生活史記錄
https://www.inaturalist.org/projects/life-history-of-hong-kong-caterpillars
There are also websites that someone else did the rearing and shared the information.
Here listed some of these websites that could help us ID a caterpillar without rearing.
Lepidoptera in Taiwan: (台灣產蝶蛾圖鑑 in Chinese only)
http://dearlep.tw/?attr=&ex=&sortBy=random
Caterpillars in Taiwan
...más ↓