1 
HOP APHIS. 
5 
noticed that none of the Fly were low down on the bines, and they 
also appeared to be very weak.”— Arthur Ward, Stoke Edith Gardens. 
“May 28th, 1883.—I beg to hand you herewith a winged Aphis from 
Hop. I have two more I can send you, if you desire them. These 
were got yesterday looking over (under rather) some hundreds of 
leaves in a hop-yard ; only these were then met with. Each was 
ovipositing,* and on the leaf with each was (at some small distance) 
one small, newly-hatched, Aphis ; on no other leaf was a wingless 
Aphis seen, except on one leaf (of the same plant with one of these 
Aphides) four very small Aphides were found. 
“Last year (1882), somewhat later than this, I saw no winged 
Aphis, yet every leaf had small Aphides (perhaps fifty to a leaf) 
tolerably uniformly distributed over it. These could not all have 
been the progeny of winged Aphides, and there were larger ones 
amongst them. 
“ May 31st.—I yesterday visited another hop-yard, and found the 
Aphis more abundant, but hardly any young ones. Each Aphis had 
deposited not more than one or two, judging both from the size of the 
young Aphides and their numbers. 
“ June 2nd.—The winged Aphis is more abundant, but only at the 
margins ; the centre of the Hop-yard is still quite clean. The young 
Aphis only occurs with the winged Aphis, and is on the under side of 
the full-grown leaves, where an occasional Aphis ovipositing (see note) 
may be found. The mass of the winged Aphides are in a sleepy state 
on the leaves of one or two inches long. 
“ July 2nd.—In the Hop-yards the plants are not only outgrow¬ 
ing attack, but some circumstances must be terribly against it. 
Most Hops have Aphides, but these are nearly all the newly-liatclied 
ones, and they are not abundant.”—Dr. T. A. Chapman, Hereford. 
I have communications from various observers of Lice being seen 
later in the year, that is about August, on branches and leaves near 
the ground, which is important practically because in these cases, 
where attack is confined to the lowest parts of the plant, the spread 
may be checked by the treatment advocated by Mr. C. Whitehead, of 
removing these infested leaves and branches, and destroying them 
before the Lice on them can come to the winged state; and also 
feeding them off: by sheep. But, with regard to its bearing on first 
appearances, I would submit this fact of the Lice being seen on the 
lower leaves at a later date strengthens the probability that they were 
not there to begin with, for the simple reason that it shows that they 
are plainly distinguishable when in any quantity. 
* “ The ovipositing is doubtfully entitled to the name, the young Aphis being 
perfectly developed, but I think within a membrane.”—T. A. C, 
