Volume 4 LOURENÇO W. R. & ROSSI A. 2-12 Two new species of Cicileus Vachon, 1948 from Hoggar Mountains in Algeria (Scorpiones: Buthidae) Abstract                                                                                                                                                                             Following the recent results published on the genus Cicileus Vachon, 1948 (Scorpiones, Buthidae), an intensive research in the collections of the Muséum in Paris led to the characterization of two more new species, Cicileus hoggarensis sp. n. and Cicileus montanus sp. n., collected in the Hoggar Mountains in the South of Algeria. At present, the number of species is raised to five. With the description of two more new species, the distribution pattern of this genus is confirmed as associated with the Saharan Massifs. Moreover, an altitudinal pattern of speciation seems to take place in the Hoggar Mountains. Key-Words: Scorpion, Buthidae, Cicileus, new species, Hoggar Mountains, Algeria. Due nuove specie di Cicileus Vachon, 1948 dai Monti Hoggar in Algeria (Scorpiones: Buthidae) Riassunto                                                                                                                                                                          Facendo seguito ai recenti risultati pubblicati sul genere Cicileus Vachon, 1948 (Scorpiones, Buthidae), un’intensa ricerca nelle collezioni del Museo di Parigi ha condotto alla caratterizzazione di due ulteriori nuove specie, Cicileus hoggarensis sp. n. e Cicileus montanus sp. n., raccolte nei Monti Hoggar nel sud dell’Algeria. Al momento, il