Why are convergent ladybug beetles called convergent?

Answer 1

That they have white lines which continuously and unbrokenly encircle the head is the reason why convergent ladybug beetles are called convergent. The adjective in question makes up part of the ladybird's scientific name -- Hippodamia convergens -- because it describes a continuous, unbroken meeting from two different directions. The white lines demarcating the head as well as the two small white slashes on the top of head serve as charmingly, cleanly colorful contrasts to the insect in question's otherwise black and orange coloration.