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Updated: May 28, 2025
They will pounce upon the aphides forthwith as a cat pounces upon the mice in a well-stocked barn or farmyard. The two-spotted lady-bird in particular is the determined exterminator of the destructive hop-fly, and is much beloved accordingly by Kentish farmers.
There are, however, two other features about him which specially attract attention, as being very characteristic of the aphides and their allies among all other insects. In the first place, his mouth is provided with a very long snout or proboscis, classically described as a rostrum, with which he pierces the outer skin of the rose-shoot where he lives, and sucks up incessantly its sweet juices.
Doubtless this peculiar property of the tobacco plant has been developed as a prophylactic against insect enemies: and if so, we may perhaps owe the weed itself, as a smokable leaf, to the little aphides. Granting this hypothetical connection, the name of honey-dew would indeed be a peculiarly appropriate one.
Then breaking off the twig, he placed it against a tree, and began to pound it with his fist. But his little arm was not strong, and he had to strike it several times before he could break it open. When it did fly open, Sukey started back at seeing it full of plant-lice, or aphides. "Now," said the pickaninny, "in this little house what curious things! These little aphides have no wings.
On the other hand a nearly related reddish ant pays attention chiefly to those aphides which live on the bark of trees, while the yellow meadow-ants, a far more subterranean species, keep flocks and herds of the like-minded aphides which feed upon the roots of herbs and grasses.
In fact, almost all the best-known 'blights' and bladder-forming insects are aphides of one kind or another, affecting leaves, or stalks, or roots, or branches.
F. G. Sanborn states that "these insects have been taken in great numbers upon the linden trees in the city of Boston, and were seen in the act of devouring the Aphides, which have infested the shade trees of that city for several years past.
"Before we can get to work again, boys, it'll be nigh time to leave off." "Ay," was chorussed. "There's a drop of yale nigh at hand, we're all dry and we've yearned it, so I says let's have one drink and then talk about it as we goes back." "And so says all you," cried Smiler. But they did not in words, only in acts; so that the aphides left on the hops enjoyed a few more leaves of life.
Sugar seems to have been such a waste product, contained in the juices of the plant to an extent beyond what the aphides could assimilate or use up in the production of new broods; and this sugar is therefore secreted by special organs, the honey-tubes.
Like our colonising powers, it has its ports of call, its revictualling stations. The territory is a single meadow, a few trees, or a hedge. The domain of exploitation consists of the ground and the subsoil, together with the aphis-bearing trees whence the ants take the aphides they keep under domestication.
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