A Monograph of Egyptian Dip/era. 11/ 



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



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

 Consid. gener., 443 (Ceria) (1810); Meig., System. Beschreib., 

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

 Suit, a Buff., I. 484. 3. (Ceria) (1834); Lw., Neue Beitr., I. 7. 2. 

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

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

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

 Accad. Aspir. Natur. Napoli, (3). III. 38. 2. (Ceria) (1863); 

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

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



SYNONYMY: — clavicornis Coqueb. (nee. Fabr.), Illustr. 

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



scutellata Macq., Dipt. Exot., II. 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. Entom. 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) lapsus. 



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

 appearance, easily distinguished from any other Egyptian member 

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

 and strong petiole and which bear a terminal style, and by its 

 peculiar wing venation. 



1)ESCRIPTWS:—M<de: Head rather 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 petiole 

 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 petiole; the jowls are black and this colour 

 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 produced 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 



