The "Cybister" can be eaten by humans. In Mexico, "C. explanatus" are roasted and salted onto tacos. In Japan, "C. japonicus" is used as food. In Guangdong Province, China, several species are eaten. The great diving beetle ("Dytiscus marginalis") are bred for human food. Dytiscidae have been eaten in Taiwan, Thailand, and New Guinea. Birds and other small mammals eat "Dytiscidaes".