Several wasp species can be found around the yard. Although wasps feed on insects such as house flies and garden pests, some can also be dangerous to people. Most wasps typically ignore people. For example, social insects that live in colonies will readily sting when they perceive their nest or territory is threatened while solitary insects only sting in self-defense when mishandled. In addition, only female wasps can sting. In any case, it is best to regard any wasp with care before attempting to control it, since stings can be very painful.