Cex) 5) 
ably ant-like in their earlier stages. During the year 1900, 
when I was living in St. Mary’s Road, Oxford, there was in 
the garden a rather old, diseased apple-tree, badly infested 
with cotton-blight, Sesiids, Aphides, ete. Ants of the species 
Lasius niger, L., were always journeying up and down the 
trunk, and in their company were many individuals of an 
immature Capsid bug, which Mr. E. A. Butler identifies as a 
species of Pilophorus, probably P. cinnamopterus, Kb. At 
this stage the bugs were remarkably ant-like, and there can 
be little doubt that this mimetic resemblance as well as the 
companionship of the ants is advantageous to them. 
“ Nabis lativentris, Boh.—At Wellington College, Berks, on 
Aug. 10th, 1907, I found animmature example of the Reduviid 
bug, Nahs lativentris, Boh., actually in the ant-run and in 
company with Lasius fuliginosus, Latr. Again at Bembridge, 
Isle of Wight, on July 8th, 1909, another immature specimen of 
the same species was found in company with Lasius niger. Itis 
well known that these immature bugs possess a large, whitish 
patch on each side of the first abdominal segment, obliterating 
its breadth and giving it the appearance of a narrow, ant-like 
waist. This species, like the preceding, no doubt derives benefit 
from its close resemblance to ants and association with them. 
“T wish to thank Mr. EK. A. Butler for kindly determining 
this species for me. ‘The examples now exhibited I have 
given to the Hope Department, where they will be accessible 
to all students of insects.” 
Mr. DonistHorPE observed that he had already made and 
published the same observations on the same species, with the 
exception of the Pompilid, and that it was very interesting 
that Mr. Hamm should have independently recorded the same 
circumstances, The PreEstpENT observed that in countries 
which might be called the headquarters of the Pompilids, and 
where they were divided into three groups, so far as colouring 
is concerned, viz. black, yellow and black, and red and black, 
he had frequently noticed that each group was accompanied 
by other insects of various orders, of the same coloration 
in each case. He suggested that the question of mimicry 
involved in the cases under discussion has a much wider scope 
than any to which British insects alone can supply an answer. 
