No conclusive proof, but I am assuming that once the phone powers up for the incoming call, the magnetic field increases significantly, and that the bugs*, like a lot of other animals, are sensitive enough to then follow the field lines. Either that, or it's a Korn ringtone just making them insane.
*are they ants? They look long and not segmented enough.
@cmcmahon Oh, fine. I still say my ignorance-and-wild-guess-based pseudo-science is still as valid as your knowledge-based actual science. ¯\_(ツ)_/¯ (At least I nailed the "not real ants" part.)
*are they ants? They look long and not segmented enough.
I met someone who looks a lot like you
She does the things you do
But she is an IBM