But the colors are warning colors throughout nature. Black and yellow wasps...stings. Red and black poisonous Velvet ants.
The Monarch butterfly larvae are white and black and yellow striped. Let a bird try to eat one and he will never again. They are very noxious as they sequester the toxins from milkweed, their host plant, into their bodies.
Some insects mimic these warning colors and escape their enemies.
Black usually indicates thick hard chitin too.
By the way, sequatas taste like almonds.
Interesting. Thanks for taking the time to explain :)