Anyone keep Harvester ants?

Does anyone apart from me keep Harvester ants (Messer Barbarous) because they are polymorphic and that is what makes them so interesting.
 

Serafine

Queen
Backer
Beta Tester
Ecosystem Beta Tester
I'm not keeping Messor barbarus (although I know a lot about them) but I do keep Camponotus barbaricus which are extremely polymorphic as well.
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Mr_Ced

Colony
I am currently waiting on what I believe to be a Formica Fusca queen to have her first workers. She is begining to come out of hibernation and is laying eggs.
 
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