I was asked if there was a more simple name for the tongue-twisting Iraota rochana boswelliana. A bit of googling turned up the name Scarce Silverstreak.
I suppose in the absence of a local common name, I'll go ahead and adopt this name. The sources are a Thai website, and the earlier very long comprehensive checklist of names website.
So for all future shots of I. rochana, we will name it Scarce Silverstreak!