30 H. C. EFFLATOUN. 



there is not tlie sliglitcst reason for ehangingthe naine Sphœroijhoria, 

 for which Lœw in 1840 suggested the name Melithrej^tus, a change 

 wliich lias been adopted by Becker. Lœw 's reason for changing the 

 name ."^phœrophoria was bis impression tbat two other similarly 

 named gênera, Sphœrophora and Sphœrophorus were already estab- 

 lished. Verrall, bowever, could not trace any genus Sphœroj^hora 

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

 after Sphœrophoria 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 geniis nf birds, and consequently Haliday suggested 

 the name Mclitrophus in Walkcr's Insecta Britannica, Diptera. 



TABLE OF EGYPTIAN SPEC1ES. 



1 (2) Thorax with its side margins continuously 



yellow ; abdomen very elongate, (PL III, 



hgs. 9 and 11) l scripia L. 



2 (1) Thorax with its side margins yellow only 



above the suture; abdomen small and modera- 



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



S. SCRIPTA L. (PI. m. ligs ',t & 11) 



L., Syst. Nat., X. 549.42. {}lvsca) (1758) et Fauna Suce. 449. 

 1820. {Mnsca) (1761); Roesel, Insect. Belust., II. Musc. f. VI. 



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



(Musca) (1764) et Zool. Dan. Prodr., 172.2013. (Musca) (1776); 

 Fabr., Svst. Enîom., 772.45. {Syrphu<<) (1775) Spec. Ins., II. 434.62 

 iSyrphus) (l781), Entom. Syst", VI. 308.113. {Syrfhus) (1794) et 

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

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

 (1790); Ckderh., Faunse Ingr. Prodr., 307.965. {Syrphns) (1798); 

 Rchell., Genres Mouch. Dip\., 52. t.X.f. 2. (Syrp/nts) (1803); L.^tr.. 

 Dict. Ilist. Nat. Deterv.. XXIV. 195.568. {Syrphus) (1804) et Gen. 

 Crust. Ins., IV. ?25. (SyrphMs) (1809); Meig., System. Bcschreib., 

 III. 324.73. (Syrp/n/s) (1822); St. Faro. cS: Serv., Encycl. Méthod., X. 

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



