The Muscidae (Diptera) of Saudi Arabia, descriptions of two new species, new records and updated list of species Author Dawah, Hassan A. Centre for Environmental Research and Studies, Jazan University, P. O. Box 2095, Jazan, Kingdom of Saudi Arabia. Author Abdullah, Mohammed A. 0000-0002-3323-3623 Department of Biology, College of Science, King Khalid University, PO Box 9004, Abha- 61413, Kingdom of Saudi Arabia. mohd _ robiya @ hotmail. com; https: // orcid. org / 0000 - 0002 - 3323 - 3623 mohd_robiya@hotmail.com Author Deeming, John C. 0000-0002-6703-8180 National Museum of Wales, Department of Natural Sciences, Entomology Section, Cardiff, CF 10 3 NP, UK. john. deeming @ museumwales. ac. uk; https: // orcid. org / 0000 - 0002 - 6703 - 8180 john.deeming@museumwales.ac.uk text Zootaxa 2020 2020-10-30 4869 1 1 54 journal article 8861 10.11646/zootaxa.4869.1.1 c285848a-ccaf-4f48-8e05-7f9cf6acf225 1175-5326 4418246 C34E9D0C-336A-4F4B-A670-2F342470839D Musca ( Byomya ) biseta Hough, 1898 ( Fig. 3 ) Musca biseta Hough, 1898: 173 . Specimens examined. 1m , 1f, Jazan , Abu Aresh , Al-Mahdag Village , 25.i–16.ii.2014 , Malaise trap , H.A. Dawah ( CERS ) ; 2f, Asir , Abha , Madenate Al-Ameer Sultan , 25.ii.–25.v.2002 , Malaise trap , H.A. Dawah ( NMWC ; CERS ) . Distribution. Previously recorded from Saudi Arabia by Pont (1991) ; Dawah & Abdullah (2009) ; El-Hawagry et al . (2017 ; 2018 ). It was described from Somalia . In the Middle East it has been recorded from Iran , Iraq , Oman , Saudi Arabia , United Arab Emirates and Yemen ( Pont 1991 ; Deeming 2008 ; Dawah & Abdullah 2009 ; Moradil et al . 2013 ). Biological remarks. The biology of this species is very similar to that of M. sorbens . Vlassor & Stackelberg, quoted in Hennig (1964) recorded large numbers of larvae from a dead tortoise ( Testudo horsfieldi Gray ) ( Dawah & Abdullah 2009 ). It is a persistent sweat-fly and eye-fly ( Skidmore 1985 ).