(Nematocera; Psychodidae) as the Etiologic Agent of Myiasis: True or False?

, known as drain fly, is a non-hematophagous insect of the Psychodidae family with worldwide distribution, particularly in tropical and temperate areas. It can be found near sewer drains, sewage treatment plants, plant pots, swamps, and any other place containing decaying or moist organic matter. It has been introduced in several publications as the causative agent of myiasis in humans. A case presentation, together with a compilation of findings from a database, including 51 scientific publications in the literature, allowed us to overview critically in detail the variable aspects of epidemiology, life cycle, biology, and medical importance of this insect and its probable role in human myiasis. The absence of a precise definition of myiasis and the lack of incontestable epidemiological, entomological, and clinical evidence in the articles introducing as a causative agent led us to interrogate its role in human myiasis. It is necessary to take into account this misinterpretation and make an accurate diagnosis based on the isolation of insect larvae from the corresponding lesion.