ive read that you can feed them bread, grass seeds and popcorn but i what do messor barbarus do best on and do they need insects and sugar water.
Messor babarus like this (Foeniculum vulgare): http://www.antstore.net/shop/product_info.php?language=en&products_id=158
and insects. For example:
http://www.antstore.net/shop/product_info.php?language=en&products_id=458
Popcorn too ;)
http://www.antstore.net/album_showpage.php?pic_id=232
Greetings Martin :D