Always called the same although I don’t think it’s technically correct. I’ve looked them up before but it’s been a while. Seems I recall that they are either poisonous or they have the bright colors as a repellent to birds to make them think they are posionous.i havent seen those in years. pawpaw called them texas grasshoppers and used them to bait trotlines. they seemed to love my aunts lillies.