( vii ) 



genus ZonocJiroa (Calliphorinae). Of these six, 4 belonged 

 to one species, 1 to a second, and 1 to a third.] 



" (2) B [a single female of Rhinia apicalis, Wied. (Calli- 

 phorinae), or a species very close to it] oviposited very dif- 

 ferently. It flew to and fro until it found a spot of recently 

 piled up soft earth where no driver happened to be working. 

 It then settled and forced its pointed abdomen into the 

 earth, remaining without apparent movement for about half 

 a second, but, as I found later, actually ovipositing. It then 

 withdrew its abdomen, and, having rapidly shovelled earth 

 into the hole with its hind legs, flew away and repeated the 

 action elsewhere on the nest. On digging I found an ovum 

 at each place. 



" I took the fly, and, placing it in a glass tube containing 

 earth from the nest, witnessed its oviposition several times 

 more, and then, taking it out, again found its ova. 



" (3) (7 [the female of a species of Anthomyinae, in a condition 

 which prevented determination], of which one example only 

 was obtained, hovered over one particular opening made by 

 the ants in the ground and then let drop a number of eggs — 

 as many as six^ — in rapid succession. 



" I found no signs of carrion, excrement, vegetable refuse 

 or other material in which so many Muscids oviposit, but on 

 the contrary thought the soil particularly good and sweet. 



" Mr. Farquharson has very kindly read this little account 

 and confirms the observations. 



" Dec. 23rd. A large scattered heap of earth has now been 

 thrown up by the drivers, but I cannot find fly larvae in it. 

 I will try and dig them out." 



The following note was contained in a letter dated Jan. 14, 

 1914. 



" Drivers are a scourge at times. I see that Prof. W. M. 

 Wheeler gives instances of their attack on Vertebrata. I have 

 known them raid a fowlhouse and kill a hen and her brood, 

 and at Oni once an unfortunate guinea-pig, forgotten under 

 the house, had its eyes eaten out and large holes bitten through 

 the abdominal wall before any one saw what was happening, 

 and more than once there we had to vacate the bungalow 

 until the ants had formed up and cleared off. They approach 



