At the latest since Sall. Iug. 18,8 and Verg. G. 3,340, mapalia was the common expression, for the Romans as well, for the straw huts of the Numidians. Some North African areas were also called mapalia: 1) an imperial domain between Hippo  Regius and Calama (Aug. Epist. 66); 2) a domain that was probably also imperial in the Bagradas Valley (CIL VIII Suppl. 4, 25902; 3) a dioecesis Mappaliensis as a district within a Numidian diocese (PL 67,198).
H. Dessau, s.v. M., RE 14, 1403
M. M. Magalhães, C. A. Sertá, M., Lo spazio urbano e il nom…