The new sp. is described and figured from specimens of both sexes, collected from Guadeloupe in the Caribbean Sea. Holotype 3: Guadeloupe, Basse Terre, Habitation Deravin, SE of Pigeon, 9-II-2006; deposited at FSCA, Gainesville/FL, USA. The sp. is closely related to M. imitans Karsch from eastern South America. The all-black abdomen can readily separate it from M. imitans.