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Updated: June 9, 2025
"Those that proved the most troublesome, were the cut-worm and boll-worm. Both were hatched from the eggs laid by certain kinds of moths. During the nights of the egg-laying season, for these moths, they were easily trapped and destroyed.
Four days later, the egg-laying period over, the female, stupid and almost gone, a fine male emerged, and the following day another. I placed some of the sand from the bottom of the box on a brush tray, and put these two cases on it, and set a focused camera in readiness, so that I got a side view of a moth just as it emerged, and one facing front when about ready to cling for wing expansion.
Naturalists had written of the queen bee: away with the hated word! She is now named of all good patriots the abeille pondeuse, the egg-laying bee. In the Punch and Judy shows the gallows gives place to the guillotine.
When she feels fatigued, the worker retires to her undamaged cell and another succeeds her, impatient to get out rather than to help the first. At last the way is clear and the Halicti emerge. They disperse over the flowers around as long as the sun is hot; when the air cools, they go back to the burrows to spend the night there. A few days pass and already the cares of egg-laying are at hand.
This explains the presence here, the pairing and the egg-laying of the Sitares whom we but now saw roaming, in the company of the Anthrax-flies, at the entrance to the galleries of the Anthophoræ. The Osmia and the Anthophora, the joint owners of the premises, have each their parasite: the Anthrax attacks the Osmia and the Sitaris the Anthophora.
Putting these facts together, what more probable than that certain primitive egg-laying mammals should have carried the eggs as long as possible in the uterus. The embryo under these conditions would be better nourished by a secretion of the uterine glands than by a very large amount of yolk.
It devours the eggs and nestlings of other wild birds, and not only that, it destroys so many eggs of domestic poultry that many farmers are compelled to keep their egg-laying hens shut up in wire enclosures! Now, this condition happened to be entirely unknown to me, because I never had seen the American magpie in action in a farming community!
The man had taken out his watch as soon as he saw what she was about, in order that he might time the egg-laying process. But he was not destined to discover what he wanted to know. The dragon-fly had been at her business for perhaps two minutes, when the man saw a large frog rise to the surface just below her.
They also bestow greater care upon their offspring than most of the Fishes. The Birds are warm-blooded and air-breathing, having a double circulation; they are egg-laying like the two other classes, but their eggs are comparatively few in number, and the young are hatched by the mother and fed by the parent birds till they can provide for themselves.
It is, indeed, an interesting fact well known to ornithologists that our own American cuckoos, both the yellow-billed and black-billed, although rudimentary nest-builders, still retain the same exceptional interval in their egg-laying as do their foreign namesake.
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