Yeah, any ant can become a replete at any time in its adult life. But Myrmecocystus do it a special way. Their abdominal tergites have a fold of tissue underneath each segment. The workers that are chosen to become repletes are filled up with food, the tissue unfolds and the abdomen grows in volume. But, unlike Myrmecocystus, other ants can go back to normal after being emptied. Myrmecocystus can't because their tissue isn't elastic I guess. (I don't quite understand why they can't, but that is what I gather from articles and posts on here).You know for some reason I had it dead set in my mind that repletes were a separate caste whose sole purpose was food storage. I read the link below and now I'm pretty sure you're right.
https://www.antwiki....ste_Terminology
Edited by Ant_Dude2908, August 7 2019 - 7:14 AM.