I think ants may have similar brain size to fruit flys, which we have previously reconstructed. I'm not sure about the butterfly. You can check out a complete

I think ants may have similar brain size to fruit flys, which we have previously reconstructed. I'm not sure about the butterfly. You can check out a complete fruit fly brain here: https://fafb-ffn1.storage.googleapis.com/landing.html https://fafb-ffn1.storage.googleapis.com/landing.html Or half of a fruit fly brain that has been more fully reconstructed: https://www.janelia.org/project-team/flyem/hemibrain https://www.janelia.org/project-team/flyem/hemibrain