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| The horizontal suture dividing the two layers of mesosoma sclerites is not complete in profile view. Some sclerites are missing or has a humped profile with an sclerite at the mesosoma not present in the worker caste |
The horizontal suture dividing the two layers of mesosoma sclerites is complete in profile view (*) |
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| Intercastes |
Gynes |
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(*) One exception exists to this rule. Proformica queens have no wings or wing sclerites, although an evolutive clue still remains in the very reduced wing insertions with the shape of small depressions at the mesonotum
