A worker carpenter ant looks very similar but her thorax is more tapered. And she has hairs on her gaster, but queens have very few such hairs.

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   myrmepropagandist (futurebird@sauropods.win)'s status on Tuesday, 20-May-2025 01:18:44 JST myrmepropagandist

   in reply to

   @doctormo

   Her thorax is interesting. She could be a queen carpenter ant because of the boxy shape. She has no wings which would mean she's mated and looking for a nesting spot and mostly focused on that. But, I'm not totally certain... the angle is a bit difficult.

   Camponotus pennsylvanicus is my guess, but it could be some other Camponotus.

   The right photo is a queen, the left a major worker.

   Lovely girl!