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Hazel, this is from a site I looked up....
The most famous Lepidopteran migration is that of the Monarch butterfly which migrates from southern Canada to wintering sites in central Mexico. In late winter/early spring, the adult monarchs leave the Transvolcanic mountain range in Mexico for a more northern climate. Mating occurs and the females begin seeking out milkweed to lay their eggs, usually first in northern Mexico and southern Texas. The caterpillars hatch and develop into adults that move north, where more offspring can go as far as Central Canada until next migratory cycle.
Interesting isn't it? Because we don't have snow in so much of Australia maybe they just migrate north to Queensland during the winter, where it's warmer. It's about 9C here and raining lightly at the moment and I haven't managed to get warm since coming in from helping the farrier trim my ponies hooves.
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