Gynandromorphism in a population of Sergentomyia minuta (Rondani, 1843) in the northeast of Spain.

A study carried out, from July 1990 until April 1991, in a small village situated in the northeast of Spain (Pradell de la Teixeta) has allowed the discovery of three sandflies species: Phlebotomus ariasi, P. perniciosus and Sergentomyia minuta. P. ariasi was present from the initial data of capture to the end of October, disappearing the two others at the first half of November. The population of S. minuta furnished gynandromorphic individuals (1.6%) being the female-like specimens most commonly found (37/45, 82.2%). The different degrees of development of the genital region are discussed.