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Thanks a lot!
Sorry that I did not keep the specimen...

This has also been discovered in Taiwan:
http://140.112.10...210105.pdf

Can you advise details of the article that mentioned its occurence in Guangdong?

Moreover there is a new species described this year, Carpophthoracidia bivittata, discovered in Zhuhai, Guangdong.
I will dig it out and have a look later.