Unlike a grasshopper, it is well protected, because it is tasteless and even poisonous. But young birds, who have never tasted Ladybird, do not know this. And unknowingly try to glue the ladybug. Then, of course, the bird spits, repents of its actions and thinks: "I will not bother any more of these bugs!" But our bug is already dead. True, he died not in vain: at the cost of his life he taught the bird that it is better not to touch the ladybirds. He saved the lives of other ladybirds, including his brothers, sisters, kiddies and grandchildren. That's why it is beneficial for the ladybirds to be bright, well remembered. If they were dull, faded, little different from thousands of other (tasty) bugs, if they were difficult to remember and learn to distinguish from other bugs, then every bird in the process of "learning" would kill many ladybirds. The bright coloring of the ladybug is necessary in order for the birds to learn the lesson quickly.
http://animalworld.com.ua/news/Pochemu-bozhja-korovka-krasnaja
Thanks for the support in my messages.@magnata
That's a nice close up photo you got there! :)