Predaceous arachnids of the order Araneae, most of which spin webs that serve as nests and as traps for prey.
Orthopterous insects of the family Blattidae, characterized by a flattened body, rapid movements, and nocturnal habits and including several common household pests.
Pale-colored, soft-bodied, chiefly tropical social insects, of the order Isoptera, that feed on wood, some being highly destructive to buildings, furniture, etc.
Black, red, brown, or yellow social insects of the family Formicidae, of worldwide distribution especially in warm climates, having a large head with inner jaws for chewing and outer jaws for carrying and digging, and living in highly organized colonies containing wingless female workers, a winged queen, and, during breeding seasons, winged males, some species being noted for engaging in warfare, slavemaking, or the cultivation of food sources.
A flat, wingless, bloodsucking hemipterous insect, Cimex lectularius, that infests houses and especially beds.
Long-tailed rodents of the family Muridae, of the genus Rattus and related genera, distinguished from the mouse by being larger.
Small Old World rodents of the family Muridae, especially of the genus Mus, introduced widely in other parts of the world.
Insects of the order Coleoptera, characterized by hard, horny forewings that cover and protect the membranous flight wings.