Antlion, also spelled ant-lion and ant lion, is a name applied to a group of about 2,000 species of insects in the family Myrmeleontidae (sometimes misspelled as "Myrmeleonidae"). The best-known genus is Myrmeleon ("antlion"). Strictly speaking, the term "antlion" applies to the larval form of the members of this family, but while several languages have names for the adult, no word for them in English is widely used. Very rarely, the adults are called antlion lacewings.