Never knew how much their color varied. It makes the first one look a lot like a Lasius queen. Stop making us anxious hehe
That might have been the lighting, don't count on em being brown.
It was definitely the lighting; I actually noticed it too.
Bracc. took some photos of the queens crawling up the walls where we caught them outside; in which they looked very bright yellow. At one point, when we were looking at the queens in out dimly-lit car, I panicked a little and thought the queens were Nylanderia flavipes (who fly soon after Prenolepis, and are closely related), but they're definitely Prenolepis. I've noticed that their apparent coloration depends greatly on the lighting; in some cases they're dark and look similar to lightly-colored Chthonolasius queens, and in some cases they're bright yellow and look almost like wasps!
Nevertheless, they've grown on me and I've definitely classified them as one of the most beautiful species out there. The workers' pigments are also very interesting; they range from a crisp amber to a rich, dark (almost reddish), brown.
Good Luck in finding some for yourself, Nate. From what I understand, they're relatively difficult to get your hands on, but definitly worth the time and effort.