The "close" species I find is Chlorophorus tredecimmaculatus (Chevrolat, 1863) known from China. There is a picture of it in Hua m(2009), n°360 page 31.
Thank you, Xavier. "Close" is always a risky word with Chlorophorus. I have ordered a few books on Chinese Cerambycidae, maybe then I can ask less easy questions.