The Myrmecophilidae or ant-loving crickets are rarely encountered relatives of mole crickets, and are obligate inquilines within ant nests. They are very small, wingless, and flattened, so resemble small cockroach nymphs. The few genera contain fewer than 100 species. Ant crickets are yellow, brown, or nearly black in color. They do not produce sound, and lack both wings and tympanal organs ("ears") on the front tibia.