Tehran University of Medical Sciences Journal of Arthropod-Borne Diseases 2322-1984 8 2 2014 12 15 224 227 EN Andrzej Grzywacz Chair of Ecology and Biogeography, Faculty of Biology and Environment Protection, Nicolaus Copernicus University, Lwowska, Poland. Mehdi Khoobdel Health Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran, Tehran, Iran. Kamran Akbarzadeh Department of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. 2015 10 16 Background: Passeromyia is a muscid genus previously known from the Old World Afrotropical and Oriental re- gions and eastwards from Australia and the West Pacific. The genus is known from nest-dwelling larvae which may be parasites of the nestlings. This study was aimed to identify of the Passeromyia species in the Iranian Persian Gulf Islands. Methods: The flies were collected during April 2010 to March 2011 on the 4 Iranian Persian Gulf islands, Greater Tunb, Lesser Tunb, Abu-Mousa and Qeshm with fly bottle trap and entomological net. Results: During this sampling, 18 representatives of P. heterochaeta, a species with free-living haematophagous larvae, have been collected. The species is reported herein from Greater Tunb, Lesser Tunb, Abu-Mousa and Qeshm islands. Conclusions: This is the first Palaearctic record of the species as well as the first report of the genus Passeromyia from the Palaearctic Region. https://jad.tums.ac.ir/index.php/jad/article/view/204 https://jad.tums.ac.ir/index.php/jad/article/download/204/181