A Monografh of Egyptian Di fiera. 117 



1. C. VESPIFORMIS LAÏR. (PI. V, fig. 7). 



Latr., Gen. Crust. et Ins., IV. 328. {Ceria) (1809) et 

 Consid. génér., 443 (i'ena) (1810); Meic, System. Eeschreib., 

 III. 161. 3. {(Jeria) (1822) et VI. 348. {Ceria) (1830); Macq., 

 Suit, à Biiff., I. 484. 3. {Ceria) (1834); Lw., Neue Beitr., I. 7. 2. 

 {Ceria) (1853); Schin, Verh. zool.-bot. Ver. Wien, VII. 447. 4. 

 (rVrm) (1857) et Nov. Reise, Dipt., 369. 104. {Ceria) (1868); 

 Rond., Dipterol. Prodr., II. 214. 2. {(Jeria) (1857); Palma, Annal 

 Accad. Aspir. Natiir. Napoli, (3). III. 38. 2. {Ceriet) (1883); 

 Rœder, Berlin. Entom. Zeitschr., XXXI. 73. {Ceria) (1887) ; 

 Verr., Brit. FI., VIII., Catal. Syrph., 119. {Ceria) (1901). 



SYXOXYIlIY.—claoicornis Coqueb. {nec. Fabr.), Illustr. 

 Icon. Insect., 102. t. XXIII. f. 8. {Ceria) (1804). 



srutellata Macq., Dipt. Exot., IL 2, 10. 1. t. I. f. 1. {Ceria) 

 (1842) et Explor. scient, de l'Alegrie, Zool., III. 463. 148. {Ceria) 

 (1849); Saund., Trans. Entom. Soc. Lond., IV. 66. {Ceria) (1845). 



intricata Saund., Trans. Entofn?Soc. Lond., IV. 64. 1. t. IV. 

 f. 2, 2a. {Ceria) (1845); Walk., List Dipt. Brit. Mus., III. 538. 

 {Ceria) (1849). 



conopsiformis A. Costa, Atti. R. Accad. Napoli, (2) V. 25. 50 

 {Ceria) (1893) la-psiis. 



DIAGNOSIS:—A quaint and beautiful fly, wasp-like in 

 appearance, easily distinguished from any other Egyptian member 

 of the f amily by its porrected antennae, which are placed on a long 

 and strong pétiole and wbieh bear a terminal style, and by its 

 peculiar wing venation. 



1)ESCRIPTI0\:—Male: Head rathcr flattened, broader 

 than the thorax; face and frons entirely yellow, rather shining 

 and quite bare, with a dark brown stripe running down the centre 

 of the face and extending from the base of the antennal pétiole 

 to the upper mouth edge, but not quite reaching the latter; there 

 are also two small triangular dark brown markings on the frons, 

 one on each side of the pétiole; the jowls are black and this colonr 

 extends to the eyes; proboscis brown; the lower part of the occiput 

 is inflated and yellow, in the middle black, and the occipital up- 

 per border is again much j^roduced and bright yellow; vertex in- 

 flated and bearing the three ocelli close together ; eyes dark red- 

 dish-brown, bare, meeting for a distance which is a little less than 



