INJURIOUS TO THE LEBBEK TREES OF CAIRO. 



133 



are rendered conspicuous by the dilated scape and the four terminal segments 

 which are yellow. The male is smaller and more sombrely coloured. 



The other species, if less pretty in appearance, is believed to be commoner 

 and the more beneficial of the two. Not infrequently, entire colonies of the 

 mealy bug are practically exterminated by this Chalcid. It is of a general 

 yellowish brown colour, with darker brown shading-s. 



Fifj-. 9. — Chareh el Manaldi as it appeared in August 1909, 

 after the trees had been cut back. 



The third species which has been bred from colonies of the mealy bug, is a 

 very small, dark, highly metallic green Chalcid, with yellow legs and brown 

 antennae. 



The identification of all three species has yet to be determined. 



