(Obv I didn't draw the Anton, I just wanted to use the height chart for scale and all that)
Anton's totally an ant, totally not a brood parasite, lil sibling!
Aka my funhouse OC, one of them at least lol.
They're a Large Blue Butterfly (Phengaris arion), which basically a brood parasites that target red ants (a specific species of red ant that isn't a fireant but shhh lemme have fun). Ants identify via scent, and the caterpillars mimic the scent of an ant to trick them into bringing them into their colonies, where the caterpillar would eat larvae present or pull a cuckoo bird and start whining and demanding food. Please let me have an excuse to be a stupid bug nerd, especially a parasitic bug nerd 🥹🥹🥹
Anton is convinced Arion is an ant, and it's like trying to talk to a brick wall trying to argue about it.
Arion personality wise is basically very snobby and spoiled (dude...youre an adult...unlearn that shit/silly), I think it works well with the behaviors of the bug they're based on and all. It does care about it's older bro though.