According to Breuning's key, the former species should be Dolichostyrax longipes Aurivillius, 1913. This species differs in the missing of the pronotal spine and the enlarged scape.
In a message from Radim Gabris yesterday, regarding the progress of the revision of Bornean Morimopsini, he stated that there were several new taxa. I shouldn't provide any more details about his research, but the number of species there is somewhat more than is obvious to a casual examination. When the paper is completed (next year?) we must look at this beetle again. The name we have for it now might be correct.