A 2000 - mile air trip appears almost impossible for an ordinary butterfly. It js still something of a feat for an airplane. Many insects are perfectly at home in the air, fly freely here and there, and are usually believed to flit from flower to flower or from one near-by locality to another. Rarely do we think of their travelling considerable distances, and under ordinary conditions it is very difficult, if not well-nigh impossible, to establish the fact that long trips may be made by individual insects. There is a romance about these journeys as well as a practical aspect. The facts are not difficult to understand, and it should be comparatively easy for readers to arrive at satisfactory conclusions.
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