24. The term is mentioned as early as Lestingi (1884) (see also Lombroso 1889: 581, n. 1) to describe the organization of the Fratellanza of Girgenti (now Agrigento). Melchiorre Allegra, in his 1937 testimony, spoke of a "capo della decina."

Diego Gambetta, The Sicilian Mafia The Busi…, loc. 896