( cxxvm' } 
preferences in regard to their prey, for I repeatedly noticed 
one poised over the ant-column make an unsuccessful swoop 
and then fly, keeping level with the ant carrying the particular 
object which it had missed, making occasional rushes in an 
endeavour to secure it. Those I took had obtained ant-pupae, 
but I am sure they take other things from the drivers, probably 
portions of dead insects, but I shall look into the question 
further. 
‘““ The flies were not always successful even when they had 
separated an ant with its burden from the main army, for a 
Jarge ant carrying a small burden often got away owing to the 
difficulty the fly experienced in getting hold of the load without 
falling into the jaws of the ant. 
“IT subsequently witnessed these manceuvres many times 
and, as you will see, secured a little series, each fly with its 
particular prey and the ant concerned.” 
Prof. Poulton said that Dr. G. D. H. Carpenter, to whom he 
had communicated the substance of Mr. Lamborn’s observa- 
tions, had stated that, according to his experience, the Driver 
ants, when on the march, carried pupae and never larvae, and 
that, when hunting, they did not even carry pupae. Dr. 
Carpenter’s observations were made upon Dorylus nigricans 
in Damba and Bugalla Islands, in the N.W. of the Victoria 
Nyanza. 
Mr. E. E. Austen had called his attention to a note by 
Dr. Gaillard on Bengalia gaillardi, Surcouf, preying on Ter- 
mites in a rotten tree-stump which had just been dug up at 
Konlouba, French Sudan, Aug. 13, 1908; recorded by Surcouf 
in Bull. Mus. Nat. D’Hist. Nat., 1912, No. 7 (published Apr. 
1913), p. 427. 
Prof. Poulton also referred to Mr. E. E. Green’s and Capt. 
K. E. Nangle’s notes on the attacks of an allied species, 
Ochromyia obscurepennis, Bigot, and jejuna, F., on winged 
Termites in Ceylon and Secunderabad, to Col. J. W. Yerbury’s 
observation in Ceylon that Ochromyia steals sugar grains from 
large ants (Trans. Ent. Soc., 1906, pp. 394-6), and to Mr. 
E. E. Green’s confirmatory observations in Ceylon, together 
with his description of the strongly toothed tongue of the fly 
(Proc. Ent. Soc., 1908, pp. xxvi-xxvii). The Ceylon species 
