First Report of Intestinal Myiasis Due To Eristalis tenax in Iran

Eristalis tenax, belonging to order Diptera, family Syrphidae seldomly causes in tes tinal myiasis. Intestinal myiasis caused by E. tenax larvae is a rare manifesta tion found in both humans and other vertebrate animals. We report a 22-year-old woman presented with this myiasis. The larva in her stool sample was identified as E. tenax related to its typical morphology and authentic clues. Lack of specific control meas ures in the domestic water supply system was the most probable cause of this infesta tion.