30 H. C. EFFLATOUN. 



there is not the slightest reason for changing the name Sphwrophoria, 

 for which Loew in 1840 suggested the name Melithreptus, a change 

 which has been adopted by Becker. Loew's reason for changing the 

 name Sphcerophoria was his impression that two other similarly 

 named genera, Sphcerophora and Sphcerophorus were already estab- 

 lished. Verrall, however, could not trace any genus Sphcerophora 

 while Sphcerophorus was created by Waltl for a beetle, ten years 

 after Sphcerophoria has been established. Moreover this beetle had 

 already been described a year earlier as Thorictus. In addition, 

 the name Melithreptus had also been suggested by Vieillot in 

 1816, for a genus of birds, and consequently Haliday suggested 

 the name Melitrophus in Walker's Insecta Britannica, Diptera. 



TABLE OF EGYPTIAN SPECIES. 



1 (2) Thorax with its side margins continuously 



yellow ; abdomen very elongate, (PI. Ill, 



figs. 9 and 11) 1 scripta L. 



2 (1) Thorax with its side margins yellow only 



above the suture ; abdomen small and modera- 

 tely long, (PI. Ill, figs. 7, 8, 10) 2 flavicauda Zett. 



i. S. SCRIPTA L. (PI. Ill, figs 9 & 11) 



L., Svst. Nat., X. 549.42. (Musca) (1758) et Fauna Suec, 449. 

 1820. (Musca) (1761); Roesel, Insect. Belust., II. Muse. f. VI. 



( ) (1764) ; O.F. Muller., Fauna Ins. Friedrichsd., 82.723. 



(Musca) (1704) et Zool. Dan. Prodr., 172.2013. (Musca) (1776); 

 Fabr., Svst. Entom., 772.45. (Syrphus) (1775) Spec. Ins., II. 434.62 

 (Syrphus) (i781), Entom. Syst., VI. 308.113. (Syrphus) (1794) et 

 Syst. Antl., 252.17. (Scceva) (1805); Vill., Entom. Linn., III. 449. 

 103. (Musca) (1789); Gmel., Syst, Nat., V. 2876.54. (Musca), 

 (1790); Cederh., Fauna? Ingr. Prodr., 307.965. (Syrphus) (1798): 

 Schell., Genres Mouch. Dipt., 52. t.X.f. 2. (Syrphus) (1803); Latr., 

 Diet. Hist. Nat, Deterv., XXIV 195.568. (Syrphus) (1804) et Gen. 

 Crust, Ins., IV. °25. (Syrvhus) (1809); Meig., Svstem. Beschreib., 

 111.324.73. (Syrphus) (1822); St. Farg. & Serv., Encycl. Method., X. 

 513. (1825); Macq., Rec. Soc. Sci. Lille, 1828.218.1.t,II.f.3. (1829), 



