I am currently too busy to translate all the texts into English, so if you cannot read Chinese, please use Google Translate. It might not quite accurate since there are some terms, but I have no better solution. Sorry about that.
Due to insufficient cross-border bandwidth in mainland China, access from abroad is very slow, so I rented two servers, one in the mainland and another in Hong Kong, using different domain names, but the content is basically the same. If you are currently in mainland China, you can visit www.liudayadan.com. If you are out of mainland China, you can visit www.darkegg.top. Sorry for any inconvenience.
This website is merely my personal website. Almost all the work is done by myself. Insufficiencies and mistakes in various aspects are inevitable, especially the identification, which are not guaranteed to be absolutely correct. Please do not completely trust the identification results provided here.
As you can see, this website provides pictures of insects and spider species of China. Most photos are taken from living individuals, and there are also some specimen photos. Compared with specimens, photos have advantages and disadvantages. Specimens can be dissected and sequenced, while the photos retain the color and body shape of the species in life, which is also very time-saving when obtaining. I have investigated many similar websites, but I feel that they are not quite to my liking, so I finally decided to make one myself. Although what I have is only a drop in the ocean compared to the insect diversity of East Asia, it is better than nothing. If Chinese government does not want to make such a website, I will do it.
The main part ("node") of the website includes taxa and their subtaxa. The "Gallery" pages include pictures of all species that have been collected under this taxon. The "Catalogue" pages include the names of species and subtaxa that have been included in a taxon. You can press "Ctrl+F" to search on this page. I haven't learned how to write a search engine and I am not yet prepared to deal with SQL injection.
In taxonomic articles, some species are marked as "extremely similar in appearance and can only be distinguished by genital morphology". I think that if the two species have no gene flow for a long time, the impact of genetic drift is not likely to occur only in the genitals, and if two species do not have any stable differences in morphology except for the genitals, they may not be two different species. However, in my experience, in most cases, the non-genital morphological differences between similar species do exist, but the taxonomists who published new species did not find them.
I also have a small number of photos taken by other people here, which have been authorized and the people who took these photos are refered. If you have any question, you may use this e-mail or some Chinese social media. However, I don't always have the time, and you may have to wait more than a week.
If someone declares that this website belongs to it, you can check the email address.