Lack of Papilio chaon ssp. chaon range data around China.
I do a lot of identifications in China and have gotten to know the species in the area fairly well, which is how I noticed this observation:https://www.inaturalist.org/observations/237817971 which was observed by @redthird, a observer I do identifications for very often and follow on the site.
After doing some research I noticed that the caterpillar of a Papilo butterfly was not matching up with any of the subspecies that I had seen nearby until I found ssp chaon, which had only really been observed higher up on the map. I did a deep dive and found this range map:https://yutaka.it-n.jp/pap/10580010.html which though using specimines from thailand, said that the species ranges into China, and this specimen, though on the boarder of its range was matching up in description of the species and its caterpillars exactly. https://inaturalist.lu/taxa/1510892-Papilio-chaon-chaon/browse_photos. The lack of data on this species has raised concern that this species may be more common than this site's data implys.
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The lack of data from mainland China on this site is due to a variety of reasons, but mainly due to China's stringent laws and policies. For example, the Google map background is not available in China, and until recently with the incorporation of Open street Map data layers, no one in China could see their observations on a map. Also, other Chinese websites seem to be more popular than Inaturalist.
Exactly, even in Chinese website, this situation is still exist, people can hardly ever find the useful and correct information on the Internet unless you use particular browser such as google and edge. But the most popular browser in Chinese website is Baidu or 360, only a few people will use Google, Edge and so on. For me, the most serious problem is that the information from these two browsers is almost useless, on the one hand, I can't find any keyword information, on the other hand, I can't distinguish which one is correct because all of them is in a mess. I hope this situation can be improved one day, in order to help people build an ecological concept.
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