.1 Monograph o/ Egyptian Diplera. 39 



reddish-brown a.i^c. and a i)iil)escence similar to that of tho thorax. 



Abdomen reddish-yellow, with usually the upper margin of the 

 third segment blackish and the lower half or more of the second 

 segment appearing pale greyish owing to a very délicate white pul- 

 verulence; the pubeseenee is nniformly short and |)ale; ovipositor 

 longer than the fifth segment, conical, flattened and re(hHsh-yellow. 

 There is a row of bristles on each side arising from the lower margin 

 of the third segment. 



Legs entirely reddish-yellow or yellow' except the base and apex 

 of the hind tibiae brownish. 



Wings large and broad, hyaline, with one small brownish spot 

 at the apex of R4 + 5 (which is not always very distinct) and a large 

 grey spot covering the apex of Cu2 + 2nd A; the stigma is dark; this 

 species shows a small but remarkable différence in the sexual wing- 

 domorphism which consists of a deep simiosity at the end of 

 Cu2 + 2nd A on the hind border in the maie only: this causes the 

 3rd A. cell to be produced like a second axillary lobe. 



This species, .so fnr is not indigemnis to Egypt, but it is not 

 unlikely that it may be introduced into our country. I hâve before 

 me 2 spécimens from the collection of the Ministry of Agriculture 

 labelled "Port-Said, Customs from India, Sample N° 1036. 14. V. 

 1914." 



Ch. zonatiis is very common and widely di.stributed in Indi;^ 

 where it is a serions pest on peaches; it is also l^nown from Amboina 

 and Sumatra. 



