Leukaspides: were they Thyreophoroi?

[Macedon]

I looked into some databases and unfortunately found no helpful mentioning of leucaspides in the context in question. In the sources we have various troops bearing white shields, there are even more mentions from times before Alexander. The fact that, among others, Thracians also bore white shields sometimes (but were not called whiteshields themselves) he only uses to further his line of thinking. The same applies to the Tarentine allies of Pyrrhus. You should understand that the term is generic and does not have to do with a specific type of troop. Fortunately there are many more quotes on the chalkaspides, so that we can call them a regiment of the Macedonian phalanx, but the same is just not the case with the leukaspides. So, since evidence is very sparse, there is ripe ground for assumptions and theories. If it was a bet, I would put my money on them being another regiment of the phalanx as far as the leukaspides of Antigonus in Sellasia are concerned.