An overview of the Syrphidae (Diptera) of Saudi Arabia Author Dawah, Hassan A. Author Abdullah, Mohammed A. 0000-0002-3323-3623 mohd_robiya@hotmail.com Author Ahmad, Syed Kamran 0000-0002-6211-2345 entosaif@rediffmail.com Author Al-Dhafer, Hathal 0000-0002-4911-2332 hdhafer@ksu.edu.sa Author Turner, James 0000-0003-2411-7396 urner@museumwales.ac.uk text Zootaxa 2020 2020-09-25 4855 1 1 69 journal article 8491 10.11646/zootaxa.4855.1.1 1ad9a0ab-ccd4-4047-9a29-f2dd287dc3e3 1175-5326 4411181 28A15E99-7A79-40CA-A0C6-1DC501B69E46 Eristalinus megacephalus ( Rossi, 1794 ) ( Fig. 18 ) Syrphus megacephalus Rossi, 1794: 63 Examined specimens. 1♀ , Al-Riyadh , Al Aziziyah , 20.iv.1980 , sweeping, A. Talhouk ( KSMA ) ; 2♂ , 2♀ , same locality but 28.iv.1980 ( KSMA ) ; 2♂ , 3♀ , same locality but 20.ii.1980 ( KSMA ) ; 1♂ , 3♀ , same locality but 15.x.1984 ( KSMA ) ; 3♂ , 3♀ , same locality but 14.xi.1984 ( KSMA ) ; 2♂ , 3♀ , same locality but 30.iv.1982 ( KSMA ) ; 2♂ , 2♀ , same locality but 8.i.1985 ( KSMA ) ; 1♂ , 1♀ , same locality but 15.ii.1981 ( KSMA ) ; 1♀ , same locality but 16.v.1977 ( KSMA ) ; 1♂ , same locality but 21.ix.1977 ( KSMA ) ; 1♀ , same locality but 20.ix.1980 ( KSMA ) ; 1♂ , same locality but 16.vi.1977 , El-Taher ( KSMA ) ; 1♀ , same locality but 20.ii.1980 ( KSMA ) ; 1♀ , same locality but 20.ii.1980 , A. Madi ( KSMA ) ; 1♂ , 2♀ , same locality but 15.ii.1981 , A. Talhouk & S. Tilkian ( KSMA ) ; 1♂ , 1♀ , same locality but 16.v.1977 ( KSMA ) ; 1♂ , same locality but 2.v.1981 ( KSMA ) ; 1♂ , 1♀ , same locality but 20.ix. 1980 , R. Abu-Zoherah ( KSMA ) ; 1♀ , same locality but 16.v.1977 ( KSMA ) ; 1♂ , 1♀ , same locality but 15.ii.1981 ( KSMA ) ; 1♂ , same locality but 18.i.1976 , clover, Al Ahmady ( KSMA ) ; 2♀ , same locality but 10.v.2007 ( KSMA ) ; 2♂ , 3♀ , Al Kharj , 80km . S. Al-Riyadh , 28.x.1980 , A. Talhouk & S. Tilkian ( KSMA ) ; 1♂ , Al-Riyadh , Dirab , Educaton Farm of King Saud University , 24.ii.1987 , Amr ( KSMA ) . FIGURE 17. Habitus of Eristalinus aeneus ( Scopoli, 1763 ) . Female, lateral view. FIGURE 18. Habitus of Eristalinus megacephalus ( Rossi, 1794 ) . Female, lateral view. Distribution. Smit et al . (2017: 578) stated that the material relating to E. megacephalus which is recorded by Walker & Pittaway (1987) from Kuwait and Saudi Arabia is in fact E. tabanoides . Therefore, this is the first correct record from Saudi Arabia . It was described from Italy and further recorded from the Afrotropical Region: South Africa , United Arab Emirates and Yemen ; Palaearctic Region: southern Spain , Rhone delta in France and coastal parts of Italy round the Mediterranean basin (including islands, e.g. Corsica , Malta , Sicily, Crete) to Turkey and on into Algeria , Egypt , Iran and Kuwait (Dirickx 1984; Whittington 2003 ; Naderloo et al . 2011 ; Sengupta et al . 2016 ; Smit et al . 2017 ; Speight 2020 ; Mebarkia et al . 2020 ). FIGURE 19–20. Habitus of Eristalinus tabanoides ( Jaennicke, 1867 ) . 19 ) Male, dorsal view, 20 ) Female, lateral view. Remarks. The larvae and puparia of E. megacephalus were described by Pérez-Bañóni et al . (2003b) for the first time, including new morphological characters of the thoracic respiratory process. E. megacephalus is a fast flying species around tall waterside vegetation and it prefers open ground and freshwater; canal and riverside situations in open country; and coastal lagoons ( Speight 2020 ).