Earwig facts teach us that these bugs are not fussy eaters. Earwigs are omnivores and tend to eat at night. Earwigs eat both plant matter, such as leaves, fruit, flowers, and mold, as well as insects, and they don’t mind whether their dinner is alive or dead. The fact that they are able to chew enables them to eat tough foods, such as other insects. What’s that crawling on your plate?