True enough. Marvel Cosmic has been, due to financial reasons more than anything else, more of something that I have kept abreast of through the internet rather than actually following. So while I knew Bug was a Guardian, I never knew the details.
His wiki page only says that he was found as a prisoner of the Kree in Annihilation: Conquest, but no word is given as to how and why he was in the Macro-verse in the first place. Has any word been given as to how he wound up here or as to the fate of the rest of the Micron(aut)s?
There's been no explanation as to why Bug is normal sized. Arcturus and Marionette appeared in a miniseries that was nominally supposed to be a Son of Hulk series, but was really a stealth Micronauts mini. The Micros are calling themselves the Enigma Force these days.