A Monograph of Egyptian Diptera. 



Length 11 to 12 mm. 



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This curious and interesting insect seems to he extremely 

 rare, the only two specimens, both males, which I know, were bred 

 from larvae captured at Ghezireh by Mr. F.A. Willcocks. One is in 

 my collection labelled "feeding on Aphis pruni on reed-grass, 

 Ghezireh, spring 1909" and the other in the collection of the Sulta- 

 nia Agricultural Society labelled "bred from Banana plant, 

 Ghezireh". 



The female has not been described and is so far unknown. 



