A re-examination of the syntypes of Lutzomyia (Helcocyrtomyia) trinidadensis (Newstead,1922) in the British Museum (Natural History) led to the designation of a lectotype male and a paralectotype female, and both are now described. On the basis of these descriptions, the status of forms previously placed in synonymy with L. trinidadensis is discussed.
Psychodidae; Phlebotominae; Lutzomyia; Helcocyrtomyia; trinidadensis; morphological descriptions; taxonomic relationships