Pink Diamond only has the earth and the moon OMG I NEVER NOTICED THIS BEFORE!<<<<<<One of my favorite theories is that Pink Diamond was "newer" and that the Earth was supposed to be her first assignment.
Why are ladybugs considered a "beneficial" insect? Ladybugs feed on aphids and other soft bodied insects that feed on plants. The ladybug feeds on these pests as the adult ladybug and as the larva. One ladybug can eat as many as 50 aphids a day.