I've compared a piece of "milante" I have to the wood database's photos of light red meranti. My piece is considerably darker. The side grain structure looks similar. The light weight and working properties are as described. I haven't been able to get a good look at the end grain on my piece because it's pretty ragged, and sanding almost seems to make it worse. (According to the wood database, "some rough or ragged surfaces may be left while sanding" - so this seems to be a data point in favor of it being meranti.) What little I can tell of the end grain, it looks like it
could be similar to the photos, but again, much darker.
The wood database has no photos of dark red meranti, but
Exotic Wood meranti has photos of several varieties. On my piece, the end grain looks a great deal like the first four endgrain photos there, which don't seem to exactly match the "dark red meranti" sample on the same page.
I believe what I have here is one of the species called "meranti" (of which there are apparently many), and probably in the "dark red meranti" group. It's definitely not light red, white, or yellow.