A Monograph of Egyptian Diptera. 79 



f. 14. (1902); Beck., Mitteil. Zool. Mus. Berl., II. 83. 118. (1903) ; 

 Lundb., Dipt. Danica, V. 418-19. (1916). 



SYNONYMY: — ? cenescens Macq., Dipt. Exot., Suppl. II. 

 (2). 117. (59)45. (1842). 



cuprovittatus Wied., Aussereurop. Zweifl., II. 190. 54. (1836). 



flavicomis Rossi {nee. Fabr.) Faun. Etr., II. 290. 1465. (Syr- 

 phus) (1790); Illig., Fauna Etr. Pvossi, LI. 447. 1465. (Syrphus) 



(1807). 



melanius Harris, Expos. Engl. Ins., 53 t. XV. f. 12. (Musca) 



(1776). 



punctata Mill., Fauna Friedrichsd., 720 (Musca) (1746) et 

 Zool. Dan. Prodi-., 2050. (Musca) (1776) ; Vill., Entom. Linn., III. 

 465. 143. (Musca) (1789); Schrank, Fauna boica, III. 115. 2432. 

 (Musca) (1803). 



sincerus Walk., List Dipt. Brit. Mus., III. 611. (1849) ; T. 

 Harris, Ins. injur, to Veg., Bad., 609. (1862); Lw. Sillim. Journ. 

 of Sci. and Arts, XXXVII. 317. (1864). 



stygius Newm., Entom. Mag., II. 313. (1830). 



taphicus Wild.. Aussereurop. Zweifl., II. 191.57. (1830). 



DIAGNOSIS: — Scutellum aeneous like the thorax; eyes spot- 

 ted and touching in the male onlv for one third of the length of 

 the vertical triangle; species entirely shining aeneous. 



DESCRIPTION.— Male: Entirely shining aeneous-black; face 

 almost covered with greyish-white dust and whitish pubescence, 

 except on a shining black, rather narrow, elongate central knob, 

 which extends down to the upper mouth-edge; the space from the 

 mouth-edge to the eyes is also shining black. Jowls fairly large, 

 black with whitish pubescencs ; occipital border greyislrblack with 

 very short pubescence; occiput rather puffed out and shining, with 

 larger luteous pubescence. Vertex shining black, rather long, with 

 inconspicuous short tawny pubescence. Frons covered with dust and 

 pubescence rather more yellow than that on the face, and leaving 

 the small (sometimes very small) middle space shining black, and 

 which is continued down to the sides of the antenna?, but with 

 a luteous margin close against the antennae. 



Eyes reddish with dark spots, less numerous and more isolated 

 and rounded on the lower part, but more numerous and irreoular- 

 ly coalescing on the upper part ; they meet for a very short dis- 

 tance, about one third of the vertical triangle, and bear a very short 



