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Updated: May 21, 2025
When the instinct was once acquired, if carried out to a much less extent even than in our British F. sanguinea, which, as we have seen, is less aided by its slaves than the same species in Switzerland, I can see no difficulty in natural selection increasing and modifying the instinct always supposing each modification to be of use to the species until an ant was formed as abjectly dependent on its slaves as is the Formica rufescens.
If we had not known of any other slave-making ant, it would have been hopeless to have speculated how so wonderful an instinct could have been perfected. Another species, Formica sanguinea, was likewise first discovered by P. Huber to be a slave-making ant. This species is found in the southern parts of England, and its habits have been attended to by Mr.
When they wish to increase their nest by a new layer, they take advantage of the first wet day, the rain serving to agglutinate and unite the materials. They operate in almost the same way as the Formica fusca, though exhibiting more skill and resource as architects; they know better how to calculate beforehand the number of pillars required in a hall of a determined size.
It is most unwise for two people who have had luxuries separately to join and give them up." "Luxuries! I wish you knew Peter and Maria." "Osgood, you are morbid." "Now, aunt, hear me. I am resolved to choose my own life; you must let me go. Whatever way I go, I shall not disgrace you. Formica may give me a sailor's outfit, if he chooses.
Formica sanguinea, on the other hand, possesses much fewer slaves, and in the early part of the summer extremely few. The masters determine when and where a new nest shall be formed, and when they migrate, the masters carry the slaves. Both in Switzerland and England the slaves seem to have the exclusive care of the larvae, and the masters alone go on slave-making expeditions.
"His father was a tradesman," explained Mr. Formica, "while Lily can go back to her great-grandfather before trade need be mentioned." "Old Mr. Tree's father," remarked his wife, "was a brigadier-general in the Revolution." "He was a drover, for all that," said Osgood. Mrs. Formica changed the theme, and talked of Saratoga. "We'll go," Osgood said, crossly; "but I must first go to my tailor."
Salvator Formica it is who has aided you, dear Antonio." "Salvator!" old Capuzzi began; "Salvator Rosa! I have looked upon you as my worst enemy, but I have always held your art in highest honour; and now I love you as the most valued of my friends, and I venture to beg you to accept me as such."
But the old fellow, quite infatuated by his passion and jealousy, had not ceased to torment the poor girl with his folly in the most abominable way. And here Pasquarello mentioned a host of mad tricks which Pasquale had done, and which were really current in Rome about him. Signor Capuzzi sat on thorns; he murmured at intervals, "Curse you, Formica! You are lying! What evil spirit is in you?"
"Yes, yes," murmured Pasquale Capuzzi to himself, whilst his eyes sparkled with delight, "yes, yes, my dear, good Formica; he will marry his sweet Marianna, the happy Pasquale. He knew that the dear little darling had always loved him, and that it was only Satan who had led her astray." "Why then, everything is all right," said Doctor Gratiano, "and there's no cause for lamentation."
On some mimosa-trees, not far from the house, he had already observed indeed, so had all of them a very singular species of ants' nests of a yellowish brown colour. The ants themselves were of a beautiful emerald green. They were the Formica spinicollis.
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