Other invertebrates preyed on by "D. crocata" include silverfish, earwigs, millipedes, burying beetles and crickets. Other insect pests include scale insects, aphids and earwigs. Common diet items include crickets, locusts, beetles, earwigs, cicadas, ant lions, bugs and ants. Predators include arachnids, birds, and many insects including other ants, dragonflies, earwigs, and beetles. Common predators include birds, rodents, beetles, earwigs, and other insects. Ants, bees, earwigs, and wasps can crawl into the nesting boxes and damage the newborns. In Mongolia, insects like beetles, earwigs and crickets are part of its diet. Multipurpose insecticides for control of earwigs, grasshoppers, sowbugs and other insects are more common. Hippolyte Lucas observed scarlet acarine mites on European earwigs. Some insects, such as earwigs, show maternal care, guarding their eggs and young. Thrips, and occasionally earwigs have also been observed as affecting "H. rhamnoides". The common predatory wasp, the yellow jacket ("Vespula maculifrons"), preys upon earwigs when abundant. The eggs and nymphs are also cannibalized by other earwigs. Earwigs are mostly scavengers, but some are omnivorous or predatory. European naturalists have observed bats preying upon earwigs.