An overview of the Ephydridae (Diptera) of Saudi Arabia Author Dawah, Hassan A. Author Ahmad, Syed K. Author Abdullah, Mohammed A. Author Zatwarnicki, Tadeusz text Zootaxa 2019 2019-12-17 4711 3 401 445 journal article 24562 10.11646/zootaxa.4711.3.1 9f235b62-9469-46ae-9fc0-9a39bd53b690 1175-5326 3586476 EF990EE4-6D69-41DE-A7ED-6C3B5141B106 Key to genera of Hecamedini from the Saudi Arabia 1. Scutellum bearing 3 marginal setae; postgenal margin sharp; gena high, over 1/2 eye height............ Hecamede Haliday - Scutellum bearing 2 marginal setae; postgenal margin rounded; gena short, less than 1/2 eye height....................2. 2. Palpus mostly yellow; prescutellar acrostichal setae greatly reduced or absent; 1 katepisternal seta; face with 1 large lateral seta............................................................ Eremotrichoma perspiciendum ( Becker, 1903 ) - Palpus blackish; 1 pair of prescutellar acrostichal setae, well developed; 2 katepisternal setae, the 2nd seta smaller and inserted below larger seta; face with 2 or more large lateral setae....................................... Allotrichoma Becker