Insects also can be insectivores; examples are dragonflies, hornets, ladybugs, robber flies, and praying mantises. Ladybugs and praying mantises will help control harmful bugs. Such potential predators include various kinds of spiders, assassin bugs, cockroaches, ladybugs, ants, and mantises. Coccinellidae, commonly known as ladybugs, ladybirds, or luckybirds, are a family of beetles. The randomly placed skull icons are lethal to ladybugs and enemy insects. This phenomenon of "bleeding" exists in some other insects, such as ladybugs. Some years have outbreaks of cicadas or ladybugs. The steel blue ladybugs like to eat the eggs planted by the planthoppers. The wasp "Dinocampus coccinellae" is both an endoparasite and ectoparasite of ladybugs. Their life cycle begins with adult ladybugs mating. The area at Frey Creek is a famous stopping point for migrating ladybugs. Aged seven, she created an all-girls club dubbed the Ladybugs. Millions of ladybugs can be seen at Frey Creek during the winter months. Chester invites Matthew to watch the Ladybugs practice and to get some tips. The reaction has been used to prepare precoccinellin, an alkaloid found in certain ladybugs.