Rare occurrence of gynandromorphism in Lutzomyia davisi (Diptera: Psychodidae: Phlebotominae) in Brazil.

Descriptions of morphological anomalies of phlebotomine sand flies (Diptera: Psychodidae) have been recorded in both the New World and the Old World. The majority of these anomalies are associated with the genitalia, the number of cibarial teeth, wing venation, the size of the palps, and other less significant features. Such morphological variations, particularly in symmetry, can result in incorrect species identification.