Megalothoraca rosalyae sp. nov., holotype female, CEUA: (41) Line drawing of abdomen, dorsal; (42–47) sternites, ventral: (42) sternite 1; (43) sternite 2; (44) sternite 3; (45) sternite 4; (46) sternite 5; (47) sternite 6; (48) wing (spurious vein in detail, left side); (49–51) cerci and segment 8: (49) general view, ventral; (50) in detail, ventral; (51) general view, lateral; (52) spermatechae; (53) oviscape, taenia, eversible membrane, segment 8, and cerci. Scale bars: 41, 48, 53 = 1.0 mm, 42–47, 49, 51, 52 = 0.2 mm.