There is a really crazy paper where they did the "mirror dot" test for self recognition on ants. BUT. It's in the "Journal of Science" which isn't "Science" ... and it's odd to have an insect paper not in an insect journal.
And this is their webpage:
https://www.journalofscience.net
Listen I just want this paper to be real, but it's kind of out there and the journal IDK.