Two thousand seven hundred and seventy four sand flies were captured since 1987 to 1992 in endemic areas of human bartonellosis and Peruvian Verruga (district of San José de Lourdes, province of San Ignacio - 05 degrees 03' LS, and district of Lonya Grande, province of Utcubamba - 06 degrees 05'30" LS) belonging to the Northeast region of Marañon, Peru. Thirteen species were identified, 11 belonging to the genus Lutzomyia, 1 to Brumptomyia and the other to Warileya. Lutzomyia sp, close to L. serrana and L. maranonensis n. sp., Galatti, Cáceres & Le Pont are more prevalent (89.74% of the individuals captured). Suggests working of the kind. Lutzomyia verrucarum (Townsend, 1913) is reported in Utcubamba province for the first time.