Funny coincidence. I am now relaxing the same species, also from China. Mine has long spines on the inner sides of the third and fourth antennomere tips. Your specimen is not in good condition but probably the spines are still there (I can see shadows of spines in your photo). It should be Demonax. Something similar to Demonax longissimus, but not the same species. I can probably say more after preparing my specimen.
It is Rhaphuma indeed. What seemed spikes to a naked eye appeared under microscope to be a few tip setae stuck together. Here is my specimen from Guangxi:
Thank you all for your guidance. I guess it will not be easy from this point to go to species-level. Francesco talked about aperta Gressitt. Any other candidate?
As to the candidates, with Gressitt’s „Longicorn beetles of China“ I arrive at Rhaphuma nigrolineata Pic, 1915. The latter was placed twice at this Forum here from Laos and here from Vietnam. Strangely, Gressitt indicates Tibet as the locality and West China for distribution of Rh. nigrolineata. In any case those beetles look different from Robert’s and mine. Could not find anything very close in „Cerambycid-beetles of Laos“. One should probably check later descriptions.
Chine: Rhaphuma cf. nigrolineata
Posted - 01/04/2014 : 22:16:58
