Photos by] [H. Donisthorpe, F.Z.8., F.E.S8. 
A FLY THAT IS BORN IN ANTS’ NESTS. 
The upper photographs show, to the left, the upper side, and to the right the under side of the strange flat grub of this Fly. 
Below is the Fly itself, very like a ‘‘bumble”’ bee except that it has two wings instead of four; and on the right is the “ash- 
coloured”’ ant in whose nest it is usually born. 
