Abstract
BACKGROUND: The present study is one in a series of planned studies aiming to catalogue the whole order Diptera in both Egypt and Saudi Arabia. NEW INFORMATION: All known Egyptian and Saudi Arabian conopid taxa are systematically catalogued in the present study. Three species are recorded herein for the first time from Saudi Arabia: Conops (Asiconops) elegans Meigen, 1804 and Thecophora atra (Fabricius, 1775) (Al-Baha region, south-western of Saudi Arabia), and Conops (Conops) quadrifasciatus De Geer, 1776 (Tabuk region, north-western of Saudi Arabia). Physocephala variegata (Meigen, 1924) is also recorded for the first time from Gebel Elba, the south-eastern triangle of Egypt. Considering that Gebel Elba in Egypt and Al-Baha in Saudi Arabia are affiliated to the Afrotropical Region, this is the first time Physocephala variegata and Thecophora atra have been recorded from the Afrotropical Region. An updated taxonomy, world and local distributions, dates of collection and some coloured photographs are provided.